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ChangeLog
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2.0.11 released
* validate add_torrent_params::save_path at run-time
* use stricter rules for what filenames are valid on Android
* fix applying IP filter to DHT traffic (HanabishiRecca)
* fix race condition when cancelling requests after becoming a seed
* fix performance bug in the file pool, evicting MRU instead of LRU (HanabishiRecca)
* fix bug where file_progress could sometimes be reported as >100%
* don't hint FADV_RANDOM on posix systems. May improve seeding performance
* allow boost connect while checking resume data if no_verify_files flag is set
* fix BEP-40 peer priority for IPv6
* limit piece size in torrent creator
* fix file pre-allocation when changing file priority (HanabishiRecca)
* fix uTP issue where closing the connection could corrupt the payload
* apply DSCP/TOS to sockets before initiating the TCP connection
* assume copy_file_range() exists on linux (unless old glibc)
* fix issue where set_piece_deadline() did not correctly post read_piece_alert
* fix integer overflow in piece picker
* torrent_status::num_pieces counts pieces passed hash check, as documented
* check settings_pack::max_out_request_queue before performance alert
* add announce_port setting to override the port announced to trackers
2.0.10 released
* allow on_unknown_torrent method in the absence of active torrents (new plugin feature added)
* add feature to async_move_storage() to not move files
* fix reject resume data if it contains mismatching info hashes
* fix clear the candidate_cache when clear peer_list
* fix missing python converter for dht::announce_flags_t
2.0.9 released
* fix issue with web seed connections when they close and re-open
* fallocate() not supported is not a fatal error
* fix proxying of IPv6 connections via IPv4 proxy
* treat CGNAT address range as local IPs
* add stricter checking of piece layers when loading torrents
* add stricter checking of v1 and v2 hashes being consistent
* cache failed DNS lookups as well as successful ones
* add an i2p torrent state to control interactions with clear swarms
* fix i2p SAM protocol parsing of quoted messages
* expose i2p peer destination in peer_info
* fix i2p tracker announces
* fix issue with read_piece() stopping torrent on pieces not yet downloaded
* improve handling of allow_i2p_mixed setting to work for magnet links
* fix web seed request for renamed single-file torrents
* fix issue where web seeds could disappear from resume data
* extend save_resume with additional conditional flags
* fix issue with retrying trackers in tiers > 0
* fix last_upload and last_download resume data fields to use posix time
* improve error messages for no_connect_privileged_ports, by untangle it from the port filter
* fix I2P issue introduced in 2.0.0
* add async tracker status query, post_trackers()
* add async torrent status query, post_status()
* support loading version 2 of resume data format
* fix issue with odd piece sizes
* add async piece availability query, post_piece_availability()
* add async download queue query, post_download_queue()
* add async file_progress query, post_file_progress()
* add async peer_info query, post_peer_info()
2.0.8 released
* fix uTP streams timing out instead of closing cleanly
* add write_torrent_file_buf() overload for generating .torrent files
* add create_torrent::generate_buf() function to generate into a buffer
* fix copy_file when the file ends with a sparse region
* uTP performance, fix packet loss when sending is stalled
* fix trackers being stuck after session pause/resume
* fix bug in hash_picker with empty files
* uTP performance, prevent premature timeouts/resends
* add option to not memory map files below a certain size
* settings_pack now returns default values when queried for missing settings
* fix copy_file fall-back when SEEK_HOL/SEEK_DATA is not supported
* improve error reporting from file copy and move
* tweak pad file placement to match reference implementation (tail-padding)
* uTP performance, more lenient nagle's algorithm to always allow one outstanding undersized packet
* uTP performance, piggy-back held back undersized packet with ACKs
* uTP performance, don't send redundant deferred ACKs
* support incoming SOCKS5 packets with hostnames as source address, for UDP trackers
* ignore duplicate network interface change notifications on linux
* fix total_want/want accounting when forcing a recheck
* fix merging metadata with magnet links added on top of existing torrents
* add torrent_flag to default all file priorities to dont_download
* fix &so= feature in magnet links
* improve compatibility of SOCKS5 UDP ASSOCIATE
* fix madvise range for flushing cache in mmap_storage
* open files with no_cache set in O_SYNC mode
* 2.0.7 released
* fix issue in use of copy_file_range() on linux
* avoid open-file race in the file_view_pool
* fix issue where stop-when-ready would not close files
* fix issue with duplicate hybrid torrent via separate v1 and v2 magnet links
* added new function to load torrent files, load_torrent_*()
* support sync_file_range() on linux
* fix issue in write_torrent_file() when file size is exactly piece size
* fix file_num_blocks() and file_num_pieces() for empty files
* add new overload to make_magnet_uri()
* add missing protocol version to tracker_reply_alert and tracker_error_alert
* fix privilege issue with SetFileValidData()
* add asynchronous overload of torrent_handle::add_piece()
* default to a single hashing thread, for full checks
* Fix bug when checking files and the first piece is invalid
* 2.0.6 released
* fix issue creating a v2 torrent from torrent_info containing an empty file
* make recheck files also update which files use partfile
* add write_through disk_io_write_mode, which flushes pieces to disk immediately
* improve copy file function to preserve sparse regions (when supported)
* add function to truncate over-sized files part of a torrent
* fix directory creation on windows shared folders
* add flag to make add_files() not record file attributes
* deprecate (unused) allow_partial_disk_writes settings
* fix disk-full error reporting in mmap_disk_io
* fixed similar-torrents feature for v2 torrents
* fix potential unbounded recursion in add_completed_job, in disk I/O
* deprecated (unused) volatile_read_cache setting
* fix part files being marked as hidden on windows
* 2.0.5 released
* on windows, explicitly flush memory mapped files periodically
* fix build with WolfSSL
* fix issue where incoming uTP connections were not accepted over SOCKS5
* fix several issues in handling of checking files of v2 torrents, esp. from magnet links
* make the token limit when parsing metadata from magnet files configurable
* fix issue with stalled pieces on disk full errors
* fix missing python binding for file_progress_flags
* fix torrent_file_with_hashes() to fail when we don't have the piece layers
* restore path character encoding conversion for non UTF-8 locales on linux
* fix use-after-free bug in make_magnet_uri
* add write_torrent_file() to produce a .torrent file from add_torrent_params
* allow loading v2 .torrent files without piece layer
* fix issue with adding v2 torrents with invalid file root hash
* 2.0.4 released
* fix piece picker bug causing double-picks with prefer-contiguous enabled
* expose session_params in python bindings
* fix (deprecated) use of add_torrent_params::info_hash
* fix issue creating and loading v2 torrents with empty files. Improves
conformance to BEP52 reference implementation
* 2.0.3 released
* add new torrent_file_with_hashes() which includes piece layers for
creating .torrent files
* add file_prio_alert, posted when file priorities are updated
* fix issue where set_piece_hashes() would not propagate file errors
* add missing python binding for event_t
* add work-around for systems without fseeko() (such as Android)
* add convenience header libtorrent/libtorrent.hpp
* increase default max_allowed_in_request_queue
* fix loading non-ascii filenames on windows with torrent_info constructor (2.0 regression)
* add std::hash<> specialization for info_hash_t
* fix integer overflow in hash_picker and properly restrict max file sizes in torrents
* strengthen SSRF mitigation for web seeds
* 2.0.2 released
* add v1() and v2() functions to torrent_info
* fix piece_layers() to work for single-piece files
* fix python binding regression in session constructor flags
* fix unaligned piece requests in mmap_storage
* improve client_data_t ergonomics
* fix issue with concurrent access to part files
* 2.0.1 released
* fix attribute in single-file v2 torrent creation
* fix padding for empty files in v2 torrent creation
* add function to ask a file_storage whether it's v2 or not
* fix mtime field when creating single-file v2 torrents
* fix performance regression in checking files
* disable use of SetFileValidData() by default (windows). A new setting
allows enabling it
2.0 released
* dropped dependency on iconv
* deprecate set_file_hash() in torrent creator, as it's superseded by v2 torrents
* deprecate mutable access to info_section in torrent_info
* removed deprecated lazy_entry/lazy_bdecode
* stats_alert deprecated
* remove bittyrant choking algorithm
* update userdata in add_torrent_params to be type-safe and add to torrent_handle
* add ip_filter to session_params
* added support for wolfSSL for SHA-1 hash and HTTPS (no Torrents over SSL)
* requires OpenSSL minimum version 1.0.0 with SNI support
* deprecated save_state() and load_state() on session in favour of new
write_session_params() and read_session_params()
* added support for BitTorrent v2 (see docs/upgrade_to_2.0.html)
* create_torrent() pad_file_limit parameter removed
* create_torrent() merkle- and optimize-alignment flags removed
* merkle_tree removed from add_torrent_params
* announce_entry expose information per v1 and v2 info-hash announces
* deprecated sha1_hash info_hash members on torrent_removed_alert,
torrent_deleted_alert, torrent_delete_failed_alert and add_torrent_params
* undeprecate error_file_metadata for torrent errors related to its metadata
* remove support for adding a torrent under a UUID (used for previous RSS support)
* remove deprecated feature to add torrents by file:// URL
* remove deprecated feature to download .torrent file from URL
* requires boost >= 1.66 to build
* update networking API to networking TS compatible boost.asio
* overhauled disk I/O subsystem to use memory mapped files (where available)
* libtorrent now requires C++14 to build
* added support for GnuTLS for HTTPS and torrents over SSL
* fix issue where stop-when-ready would not close files
* uTP performance, fix packet loss when sending is stalled
* uTP performance, prevent premature timeouts/resends
* uTP performance, more lenient nagle's algorithm to always allow one outstanding undersized packet
* uTP performance, piggy-back held back undersized packet with ACKs
* uTP performance, don't send redundant deferred ACKs
* fix wanted_done/done accounting when force-rechecking
* expose userdata via torrent_handle (back-port from 2.0)
* fix renaming of filenames that are too long for the filesystem
* made UPnP and LSD code avoid using select_reactor (to work around an issue on windows in boost.asio < 1.80)
1.2.17 released
* fixed tracker connections spinning when hostname lookups stall
* fixed error in pkg-config file generation in Jamfile
* improve backwards compatibility with loading magnet link resume files
* fix bind-to-device for tracker announces and UPnP
* rename peer_tos setting to peer_dscp
* fix bdecode support for large strings (>= 100 MB)
1.2.16 released
* send User-Agent field in anonymous mode
* fix python binding for settings_pack conversion
* fix DHT announce timer issue
* use DSCP_TRAFFIC_TYPE socket option on windows
* update default ToS setting according to RFC 8622
* keep trying to announce to trackers even when all fail
* don't disable announcing from local endpoints because of temporary failures
* fix issue in parsing UPnP XML response with multiple forwarding services
1.2.15 released
* cache DNS lookups for SOCKS5 proxy
* fix stalled pieces on disk-full errors
* fix build configuration issue on NetBSD, OpenBSD and DragonFly
* make UTF-8 sanitization a bit stricter. This will re-write invalid UTF-8
code points encoding surrogate pairs
* fix restoring last_seen_complete from resume data
* fix issue on MacOS where the DHT was not restarted on a network-up notification
* make remove_torrent flags be treated as flags (instead of an enum)
1.2.14 released
* improve handling of seed flag in PEX messages
* fix issue of accruing unlimited DHT node candidates when DHT is disabled
* fix bug in parsing chunked encoding
* fix incorrect reporting of active_duration when entering graceful-pause
* fix python binding for functions taking string_view
* fix python binding for torrent_info constructor overloads
* issue python deprecation warnings for some deprecated functions in the python bindings
* fix python binding for torrent_info::add_url_seed, add_tracker and add_http_seed
1.2.13 released
* Use /etc/ssl/cert.pem to validate HTTPS connections on MacOS
* allow no-interest timeouts of peer connections before all connections slots are full
* fix issue where a DHT message would count as an incoming connection
* fix issue when failing to parse outgoing_interfaces setting
* fix super-seeding issue that could cause a segfault
* fix data race in python binding of session::get_torrent_status()
* fix need_save_resume_data() for renaming files, share-mode, upload-mode,
disable- pex, lsd, and dht.
* fix incoming TCP connections when using tracker-only proxy
* fix issue with paths starting with ./
* fix integer overflow when setting a high DHT upload rate limit
* improve Path MTU discovery logic in uTP
* fix overflow issue when rlimit_nofile is set to infinity
* fix issue in python binding interpreting int settings > INT_MAX
* Fix cxxflags and linkflags injection via environment variables
1.2.12 released
* fix loading of DHT node ID from previous session on startup
* use getrandom(), when available, and fall back to /dev/urandom
* fix python binding for "value" in dht put alerts
* fix bug in python binding for dht_put_mutable_item
* fix uTP issue acking FIN packets
* validate HTTPS certificates by default (trackers and web seeds)
* load SSL certificates from windows system certificate store, to authenticate trackers
* introduce mitigation for Server Side Request Forgery in tracker and web seed URLs
* fix error handling for pool allocation failure
1.2.11 released
* fix issue with moving the session object
* deprecate torrent_status::allocating. This state is no longer used
* fix bug creating torrents with symbolic links
* remove special case to save metadata in resume data unconditionally when added through magnet link
* fix bugs in mutable-torrent support (reusing identical files from different torrents)
* fix incorrectly inlined move-assignment of file_storage
* add session::paused flag, and the ability to construct a session in paused mode
* fix session-pause causing tracker announces to fail
* fix peer-exchange flags bug
* allow saving resume data before metadata has been downloaded (for magnet links)
* record blocks in the disk queue as downloaded in the resume data
* fix bug in set_piece_deadline() when set in a zero-priority piece
* fix issue in URL parser, causing issues with certain tracker URLs
* use a different error code than host-unreachable, when skipping tracker announces
1.2.10 released
* fix regression in python binding for move_storage()
* improve stat_file() performance on Windows
* fix issue with loading invalid torrents with only 0-sized files
* fix to avoid large stack allocations
1.2.9 released
* add macro TORRENT_CXX11_ABI for clients building with C++14 against
libtorrent build with C++11
* refreshed m4 scripts for autotools
* removed deprecated wstring overloads on non-windows systems
* drop dependency on Unicode's ConvertUTF code (which had a license
incompatible with Debian)
* fix bugs exposed on big-endian systems
* fix detection of hard-links not being supported by filesystem
* fixed resume data regression for seeds with prio 0 files
1.2.8 released
* validate UTF-8 encoding of client version strings from peers
* don't time out tracker announces as eagerly while resolving hostnames
* fix NAT-PMP shutdown issue
* improve hostname lookup by merging identical lookups
* fix network route enumeration for large routing tables
* fixed issue where pop_alerts() could return old, invalid alerts
* fix issue when receiving have-all message before the metadata
* don't leave lingering part files handles open
* disallow calling add_piece() during checking
* fix incorrect filename truncation at multi-byte character
* always announce listen port 1 when using a proxy
1.2.7 released
* add set_alert_fd in python binding, to supersede set_alert_notify
* fix bug in part files > 2 GiB
* add function to clear the peer list for a torrent
* fix resume data functions to save/restore more torrent flags
* limit number of concurrent HTTP announces
* fix queue position for force_rechecking a torrent that is not auto-managed
* improve rate-based choker documentation, and minor tweak
* undeprecate upnp_ignore_nonrouters (but referring to devices on our subnet)
* increase default tracker timeout
* retry failed socks5 server connections
* allow UPnP lease duration to be changed after device discovery
* fix IPv6 address change detection on Windows
1.2.6 released
* fix peer timeout logic
* simplify proxy handling. A proxy now overrides listen_interfaces
* fix issues when configured to use a non-default choking algorithm
* fix issue in reading resume data
* revert NXDOMAIN change from 1.2.4
* don't open any listen sockets if listen_interfaces is empty or misconfigured
* fix bug in auto disk cache size logic
* fix issue with outgoing_interfaces setting, where bind() would be called twice
* add build option to disable share-mode
* support validation of HTTPS trackers
* deprecate strict super seeding mode
* make UPnP port-mapping lease duration configurable
* deprecate the bittyrant choking algorithm
* add build option to disable streaming
1.2.5 release
* announce port=1 instead of port=0, when there is no listen port
* fix LSD over IPv6
* support TCP_NOTSENT_LOWAT on Linux
* fix correct interface binding of local service discovery multicast
* fix issue with knowing which interfaces to announce to trackers and DHT
* undeprecate settings_pack::dht_upload_rate_limit
1.2.4 release
* fix binding TCP and UDP sockets to the same port, when specifying port 0
* fix announce_to_all_trackers and announce_to_all_tiers behavior
* fix suggest_read_cache setting
* back-off tracker hostname looksups resulting in NXDOMAIN
* lower SOCKS5 UDP keepalive timeout
* fix external IP voting for multi-homed DHT nodes
* deprecate broadcast_lsd setting. Just use multicast
* deprecate upnp_ignore_nonrouters setting
* don't attempt sending event=stopped if event=start never succeeded
* make sure &key= stays consistent between different source IPs (as mandated by BEP7)
* fix binding sockets to outgoing interface
* add new socks5_alert to trouble shoot SOCKS5 proxies
1.2.3 release
* fix erroneous event=completed tracker announce when checking files
* promote errors in parsing listen_interfaces to post listen_failed_alert
* fix bug in protocol encryption/obfuscation
* fix buffer overflow in SOCKS5 UDP logic
* fix issue of rapid calls to file_priority() clobbering each other
* clear tracker errors on success
* optimize setting with unlimited unchoke slots
* fixed restoring of trackers, comment, creation date and created-by in resume data
* fix handling of torrents with too large pieces
* fixed division by zero in anti-leech choker
* fixed bug in torrent_info::swap
1.2.2 release
* fix cases where the disable_hash_checks setting was not honored
* fix updating of is_finished torrent status, when changing piece priorities
* fix regression in &left= reporting when adding a seeding torrent
* fix integer overflow in http parser
* improve sanitation of symlinks, to support more complex link targets
* add DHT routing table affinity for BEP 42 nodes
* add torrent_info constructor overloads to control torrent file limits
* feature to disable DHT, PEX and LSD per torrent
* fix issue where trackers from magnet links were not included in create_torrent()
* make peer_info::client a byte array in python binding
* pick contiguous pieces from peers with high download rate
* fix error handling of moving storage to a drive letter that isn't mounted
* fix HTTP Host header when using proxy
1.2.1 release
* add dht_pkt_alert and alerts_dropped_alert to python bindings
* fix python bindings for block_uploaded_alert
* optimize resolving duplicate filenames in loading torrent files
* fix python binding of dht_settings
* tighten up various input validation checks
* fix create_torrent python binding
* update symlinks to conform to BEP 47
* fix python bindings for peer_info
* support creating symlinks, for torrents with symlinks in them
* fix error in seed_mode flag
* support magnet link parameters with number suffixes
* consistently use "lt" namespace in examples and documentation
* fix Mingw build to use native cryptoAPI
* uPnP/NAT-PMP errors no longer set the client's advertised listen port to zero
1.2 release
* requires boost >= 1.58 to build
* tweak heuristic of how to interpret url seeds in multi-file torrents
* support &ipv4= tracker argument for private torrents
* renamed debug_notification to connect_notification
* when updating listen sockets, only post alerts for new ones
* deprecate anonymous_mode_alert
* deprecated force_proxy setting (when set, the proxy is always used)
* add support for Port Control Protocol (PCP)
* deliver notification of alerts being dropped via alerts_dropped_alert
* deprecated alert::progress_notification alert category, split into
finer grained categories
* update plugin interface functions for improved type-safety
* implemented support magnet URI extension, select specific file indices
for download, BEP53
* make tracker keys multi-homed. remove set_key() function on session.
* add flags()/set_flags()/unset_flags() to torrent_handle, deprecate individual functions
* added alert for block being sent to the send buffer
* drop support for windows compilers without std::wstring
* implemented support for DHT info hash indexing, BEP51
* removed deprecated support for file_base in file_storage
* added support for running separate DHT nodes on each network interface
* added support for establishing UTP connections on any network interface
* added support for sending tracker announces on every network interface
* introduce "lt" namespace alias
* need_save_resume_data() will no longer return true every 15 minutes
* make the file_status interface explicitly public types
* added resolver_cache_timeout setting for internal host name resolver
* make parse_magnet_uri take a string_view instead of std::string
* deprecate add_torrent_params::url field. use parse_magnet_uri instead
* optimize download queue management
* deprecated (undocumented) file:// urls
* add limit for number of web seed connections
* added support for retrieval of DHT live nodes
* complete UNC path support
* add packets pool allocator
* remove disk buffer pool allocator
* fix last_upload and last_download overflow after 9 hours in past
* python binding add more add_torrent_params fields and an invalid key check
* introduce introduce distinct types for peer_class_t, piece_index_t and
file_index_t.
* fix crash caused by empty bitfield
* removed disk-access-log build configuration
* removed mmap_cache feature
* strengthened type safety in handling of piece and file indices
* deprecate identify_client() and fingerprint type
* make sequence number for mutable DHT items backed by std::int64_t
* tweaked storage_interface to have stronger type safety
* deprecate relative times in torrent_status, replaced by std::chrono::time_point
* refactor in alert types to use more const fields and more clear API
* changed session_stats_alert counters type to signed (std::int64_t)
* remove torrent eviction/ghost torrent feature
* include target in DHT lookups, when queried from the session
* improve support for HTTP redirects for web seeds
* use string_view in entry interface
* deprecate "send_stats" property on trackers (since lt_tracker extension has
been removed)
* remove deprecate session_settings API (use settings_pack instead)
* improve file layout optimization when creating torrents with padfiles
* remove remote_dl_rate feature
* source code migration from boost::shared_ptr to std::shared_ptr
* storage_interface API changed to use span and references
* changes in public API to work with std::shared_ptr<torrent_info>
* extensions API changed to use span and std::shared_ptr
* plugin API changed to handle DHT requests using string_view
* removed support for lt_trackers and metadata_transfer extensions
(pre-dating ut_metadata)
* support windows' CryptoAPI for SHA-1
* separated ssl and crypto options in build
* remove lazy-bitfield feature
* simplified suggest-read-cache feature to not depend on disk threads
* removed option to disable contiguous receive buffers
* deprecated public to_hex() and from_hex() functions
* separated address and port fields in listen alerts
* added support for parsing new x.pe parameter from BEP 9
* peer_blocked_alert now derives from peer_alert
* transitioned exception types to system_error
* made alerts move-only
* move files one-by-one when moving storage for a torrent
* removed RSS support
* removed feature to resolve country for peers
* added support for BEP 32, "IPv6 extension for DHT"
* overhauled listen socket and UDP socket handling, improving multi-home
support and bind-to-device
* resume data is now communicated via add_torrent_params objects
* added new read_resume_data()/write_resume_data functions to write bencoded,
backwards compatible resume files
* removed deprecated fields from add_torrent_params
* deprecate "resume_data" field in add_torrent_params
* improved support for bind-to-device
* deprecated ssl_listen, SSL sockets are specified in listen_interfaces now
* improved support for listening on multiple sockets and interfaces
* resume data no longer has timestamps of files
* require C++11 to build libtorrent
* replace use of boost-endian with boost-predef
1.1.12 release
* uTP performance fixes
1.1.11 release
* fix move_storage with save_path with a trailing slash
* fix tracker announce issue, advertising port 0 in secondary IPv6 announce
* fix missing boost/noncopyable.hpp includes
* fix python binding for torrent_info::creation_date()
1.1.10 release
* fix issue in udp_socket with unusual socket failure
* split progress_notification alert category into file-, piece- and block progress
* utp close-reason fix
* exposed default add_torrent_params flags to python bindings
* fix redundant flushes of partfile metadata
* add option to ignore min-interval from trackers on force-reannounce
* raise default setting for active_limit
* fall back to copy+remove if rename_file fails
* improve handling of filesystems not supporting fallocate()
* force-proxy no longer disables DHT
* improve connect-boost feature, to make new torrents quickly connect peers
1.1.9 release
* save both file and piece priorities in resume file
* added missing stats_metric python binding
* uTP connections are no longer exempt from rate limits by default
* fix exporting files from partfile while seeding
* fix potential deadlock on Windows, caused by performing restricted
tasks from within DllMain
* fix issue when subsequent file priority updates cause torrent to stop
1.1.8 release
* coalesce reads and writes by default on windows
* fixed disk I/O performance of checking hashes and creating torrents
* fix race condition in part_file
* fix part_file open mode compatibility test
* fixed race condition in random number generator
* fix race condition in stat_cache (disk storage)
* improve error handling of failing to change file priority
The API for custom storage implementations was altered
* set the hidden attribute when creating the part file
* fix tracker announces reporting more data downloaded than the size of the torrent
* fix recent regression with force_proxy setting
1.1.7 release
* don't perform DNS lookups for the DHT bootstrap unless DHT is enabled
* fix issue where setting file/piece priority would stop checking
* expose post_dht_stats() to python binding
* fix backwards compatibility to downloads without partfiles
* improve part-file related error messages
* fix reporting &redundant= in tracker announces
* fix tie-break in duplicate peer connection disconnect logic
* fix issue with SSL tracker connections left in CLOSE_WAIT state
* defer truncating existing files until the first time we write to them
* fix issue when receiving a torrent with 0-sized padfiles as magnet link
* fix issue resuming 1.0.x downloads with a file priority 0
* fix torrent_status::next_announce
* fix pad-file scalability issue
* made coalesce_reads/coalesce_writes settings take effect on linux and windows
* use unique peer_ids per connection
* fix iOS build on recent SDK
* fix tracker connection bind issue for IPv6 trackers
* fix error handling of some merkle torrents
* fix error handling of unsupported hard-links
1.1.6 release
* deprecate save_encryption_settings (they are part of the normal settings)
* add getters for peer_class_filter and peer_class_type_filter
* make torrent_handler::set_priority() to use peer_classes
* fix support for boost-1.66 (requires C++11)
* fix i2p support
* fix loading resume data when in seed mode
* fix part-file creation race condition
* fix issue with initializing settings on session construction
* fix issue with receiving interested before metadata
* fix IPv6 tracker announce issue
* restore path sanitization behavior of ":"
* fix listen socket issue when disabling "force_proxy" mode
* fix full allocation failure on APFS
1.1.5 release
* fix infinite loop when parsing certain invalid magnet links
* fix parsing of torrents with certain invalid filenames
* fix leak of torrent_peer objects (entries in peer_list)
* fix leak of peer_class objects (when setting per-torrent rate limits)
* expose peer_class API to python binding
* fix integer overflow in whole_pieces_threshold logic
* fix uTP path MTU discovery issue on windows (DF bit was not set correctly)
* fix python binding for torrent_handle, to be hashable
* fix IPv6 tracker support by performing the second announce in more cases
* fix utf-8 encoding check in torrent parser
* fix infinite loop when parsing maliciously crafted torrents
* fix invalid read in parse_int in bdecoder (CVE-2017-9847)
* fix issue with very long tracker- and web seed URLs
* don't attempt to create empty files on startup, if they already exist
* fix force-recheck issue (new files would not be picked up)
* fix inconsistency in file_priorities and override_resume_data behavior
* fix paused torrents not generating a state update when their ul/dl rate
transitions to zero
1.1.4 release
* corrected missing const qualifiers on bdecode_node
* fix changing queue position of paused torrents (1.1.3 regression)
* fix re-check issue after move_storage
* handle invalid arguments to set_piece_deadline()
* move_storage did not work for torrents without metadata
* improve shutdown time by only announcing to trackers whose IP we know
* fix python3 portability issue in python binding
* delay 5 seconds before reconnecting socks5 proxy for UDP ASSOCIATE
* fix NAT-PMP crash when removing a mapping at the wrong time
* improve path sanitization (filter unicode text direction characters)
* deprecate partial_piece_info::piece_state
* bind upnp requests to correct local address
* save resume data when removing web seeds
* fix proxying of https connections
* fix race condition in disk I/O storage class
* fix http connection timeout on multi-homed hosts
* removed dependency on boost::uintptr_t for better compatibility
* fix memory leak in the disk cache
* fix double free in disk cache
* forward declaring libtorrent types is discouraged. a new fwd.hpp header is provided
1.1.3 release
* removed (broken) support for incoming connections over socks5
* restore announce_entry's timestamp fields to posix time in python binding
* deprecate torrent_added_alert (in favor of add_torrent_alert)
* fix python binding for parse_magnet_uri
* fix minor robustness issue in DHT bootstrap logic
* fix issue where torrent_status::num_seeds could be negative
* document deprecation of dynamic loading/unloading of torrents
* include user-agent in tracker announces in anonymous_mode for private torrents
* add support for IPv6 peers from udp trackers
* correctly URL encode the IPv6 argument to trackers
* fix default file pool size on windows
* fix bug where settings_pack::file_pool_size setting was not being honored
* add feature to periodically close files (to make windows clear disk cache)
* fix bug in torrent_handle::file_status
* fix issue with peers not updated on metadata from magnet links
1.1.2 release
* default TOS marking to 0x20
* fix invalid access when leaving seed-mode with outstanding hash jobs
* fix ABI compatibility issue introduced with preformatted entry type
* add web_seed_name_lookup_retry to session_settings
* slightly improve proxy settings backwards compatibility
* add function to get default settings
* updating super seeding would include the torrent in state_update_alert
* fix issue where num_seeds could be greater than num_peers in torrent_status
* finished non-seed torrents can also be in super-seeding mode
* fix issue related to unloading torrents
* fixed finished-time calculation
* add missing min_memory_usage() and high_performance_seed() settings presets to python
* fix stat cache issue that sometimes would produce incorrect resume data
* storage optimization to peer classes
* fix torrent name in alerts of builds with deprecated functions
* make torrent_info::is_valid() return false if torrent failed to load
* fix per-torrent rate limits for >256 peer classes
* don't load user_agent and peer_fingerprint from session_state
* fix file rename issue with name prefix matching torrent name
* fix division by zero when setting tick_interval > 1000
* fix move_storage() to its own directory (would delete the files)
* fix socks5 support for UDP
* add setting urlseed_max_request_bytes to handle large web seed requests
* fix python build with CC/CXX environment
* add trackers from add_torrent_params/magnet links to separate tiers
* fix resumedata check issue with files with priority 0
* deprecated mmap_cache feature
* add utility function for generating peer ID fingerprint
* fix bug in last-seen-complete
* remove file size limit in torrent_info filename constructor
* fix tail-padding for last file in create_torrent
* don't send user-agent in metadata http downloads or UPnP requests when
in anonymous mode
* fix internal resolve links lookup for mutable torrents
* hint DHT bootstrap nodes of actual bootstrap request
1.1.1 release
* update puff.c for gzip inflation (CVE-2016-7164)
* add dht_bootstrap_node a setting in settings_pack (and add default)
* make pad-file and symlink support conform to BEP47
* fix piece picker bug that could result in division by zero
* fix value of current_tracker when all tracker failed
* deprecate lt_trackers extension
* remove load_asnum_db and load_country_db from python bindings
* fix crash in session::get_ip_filter when not having set one
* fix filename escaping when repairing torrents with broken web seeds
* fix bug where file_completed_alert would not be posted unless file_progress
had been queries by the client
* move files one-by-one when moving storage for a torrent
* fix bug in enum_net() for BSD and Mac
* fix bug in python binding of announce_entry
* fixed bug related to flag_merge_resume_http_seeds flag in add_torrent_params
* fixed inverted priority of incoming piece suggestions
* optimize allow-fast logic
* fix issue where FAST extension messages were not used during handshake
* fixed crash on invalid input in http_parser
* upgraded to libtommath 1.0
* fixed parsing of IPv6 endpoint with invalid port character separator
* added limited support for new x.pe parameter from BEP 9
* fixed dht stats counters that weren't being updated
* make sure add_torrent_alert is always posted before other alerts for
the torrent
* fixed peer-class leak when settings per-torrent rate limits
* added a new "preformatted" type to bencode entry variant type
* improved Socks5 support and test coverage
* fix set_settings in python binding
* Added missing alert categories in python binding
* Added dht_get_peers_reply_alert alert in python binding
* fixed updating the node id reported to peers after changing IPs
1.1.0 release
* improve robustness and performance of uTP PMTU discovery
* fix duplicate ACK issue in uTP
* support filtering which parts of session state are loaded by load_state()
* deprecate support for adding torrents by HTTP URL
* allow specifying which tracker to scrape in scrape_tracker
* tracker response alerts from user initiated announces/scrapes are now
posted regardless of alert mask
* improve DHT performance when changing external IP (primarily affects
bootstrapping).
* add feature to stop torrents immediately after checking files is done
* make all non-auto managed torrents exempt from queuing logic, including
checking torrents.
* add option to not proxy tracker connections through proxy
* removed sparse-regions feature
* support using 0 disk threads (to perform disk I/O in network thread)
* removed deprecated handle_alert template
* enable logging build config by default (but alert mask disabled by default)
* deprecated RSS API
* experimental support for BEP 38, "mutable torrents"
* replaced lazy_bdecode with a new bdecoder that's a lot more efficient
* deprecate time functions, expose typedefs of boost::chrono in the
libtorrent namespace instead
* deprecate file_base feature in file_storage/torrent_info
* changed default piece and file priority to 4 (previously 1)
* improve piece picker support for reverse picking (used for snubbed peers)
to not cause priority inversion for regular peers
* improve piece picker to better support torrents with very large pieces
and web seeds. (request large contiguous ranges, but not necessarily a
whole piece).
* deprecated session_status and session::status() in favor of performance
counters.
* improve support for HTTP where one direction of the socket is shut down.
* remove internal fields from web_seed_entry
* separate crypto library configuration <crypto> and whether to support
bittorrent protocol encryption <encryption>
* simplify bittorrent protocol encryption by just using internal RC4
implementation.
* optimize copying torrent_info and file_storage objects
* cancel non-critical DNS lookups when shutting down, to cut down on
shutdown delay.
* greatly simplify the debug logging infrastructure. logs are now delivered
as alerts, and log level is controlled by the alert mask.
* removed auto_expand_choker. use rate_based_choker instead
* optimize UDP tracker packet handling
* support SSL over uTP connections
* support web seeds that resolve to multiple IPs
* added auto-sequential feature. download well-seeded torrents in-order
* removed built-in GeoIP support (this functionality is orthogonal to
libtorrent)
* deprecate proxy settings in favor of regular settings
* deprecate separate settings for peer protocol encryption
* support specifying listen interfaces and outgoing interfaces as device
names (eth0, en2, tun0 etc.)
* support for using purgrable memory as disk cache on Mac OS.
* be more aggressive in corking sockets, to coalesce messages into larger
packets.
* pre-emptively unchoke peers to save one round-trip at connection start-up.
* add session constructor overload that takes a settings_pack
* torrent_info is no longer an intrusive_ptr type. It is held by shared_ptr.
This is a non-backwards compatible change
* move listen interface and port to the settings
* move use_interfaces() to be a setting
* extend storage interface to allow deferred flushing and flush the part-file
metadata periodically
* make statistics propagate instantly rather than on the second tick
* support for partfiles, where partial pieces belonging to skipped files are
put
* support using multiple threads for socket operations (especially useful for
high performance SSL connections)
* allow setting rate limits for arbitrary peer groups. Generalizes
per-torrent rate limits, and local peer limits
* improved disk cache complexity O(1) instead of O(log(n))
* add feature to allow storing disk cache blocks in an mmapped file
(presumably on an SSD)
* optimize peer connection distribution logic across torrents to scale
better with many torrents
* replaced std::map with boost::unordered_map for torrent list, to scale
better with many torrents
* optimized piece picker
* optimized disk cache
* optimized .torrent file parsing
* optimized initialization of storage when adding a torrent
* added support for adding torrents asynchronously (for improved startup
performance)
* added support for asynchronous disk I/O
* almost completely changed the storage interface (for custom storage)
* added support for hashing pieces in multiple threads
* fix padfile issue
* fix PMTUd bug
* update puff to fix gzip crash
1.0.10 release
* fixed inverted priority of incoming piece suggestions
* fixed crash on invalid input in http_parser
* added a new "preformatted" type to bencode entry variant type
* fix division by zero in super-seeding logic
1.0.9 release
* fix issue in checking outgoing interfaces (when that option is enabled)
* python binding fix for boost-1.60.0
* optimize enumeration of network interfaces on windows
* improve reliability of binding listen sockets
* support SNI in https web seeds and trackers
* fix unhandled exception in DHT when receiving a DHT packet over IPv6
1.0.8 release
* fix bug where web seeds were not used for torrents added by URL
* fix support for symlinks on windows
* fix long filename issue (on unixes)
* fixed performance bug in DHT torrent eviction
* fixed win64 build (GetFileAttributesEx)
* fixed bug when deleting files for magnet links before they had metadata
1.0.7 release
* fix bug where loading settings via load_state() would not trigger all
appropriate actions
* fix bug where 32 bit builds could use more disk cache than the virtual
address space (when set to automatic)
* fix support for torrents with > 500'000 pieces
* fix ip filter bug when banning peers
* fix IPv6 IP address resolution in URLs
* introduce run-time check for torrent info-sections being too large
* fix web seed bug when using proxy and proxy-peer-connections=false
* fix bug in magnet link parser
* introduce add_torrent_params flags to merge web seeds with resume data
(similar to trackers)
* fix bug where dont_count_slow_torrents could not be disabled
* fix fallocate hack on linux (fixes corruption on some architectures)
* fix auto-manage bug with announce to tracker/lsd/dht limits
* improve DHT routing table to not create an unbalanced tree
* fix bug in uTP that would cause any connection taking more than one second
to connect be timed out (introduced in the vulnerability path)
* fixed falling back to sending UDP packets direct when socks proxy fails
* fixed total_wanted bug (when setting file priorities in add_torrent_params)
* fix python3 compatibility with sha1_hash
1.0.6 release
* fixed uTP vulnerability
* make utf8 conversions more lenient
* fix loading of piece priorities from resume data
* improved seed-mode handling (seed-mode will now automatically be left when
performing operations implying it's not a seed)
* fixed issue with file priorities and override resume data
* fix request queue size performance issue
* slightly improve UDP tracker performance
* fix http scrape
* add missing port mapping functions to python binding
* fix bound-checking issue in bdecoder
* expose missing dht_settings fields to python
* add function to query the DHT settings
* fix bug in 'dont_count_slow_torrents' feature, which would start too many
torrents
1.0.5 release
* improve ip_voter to avoid flapping
* fixed bug when max_peerlist_size was set to 0
* fix issues with missing exported symbols when building dll
* fix division by zero bug in edge case while connecting peers
1.0.4 release
* fix bug in python binding for file_progress on torrents with no metadata
* fix assert when removing a connected web seed
* fix bug in tracker timeout logic
* switch UPnP post back to HTTP 1.1
* support conditional DHT get
* OpenSSL build fixes
* fix DHT scrape bug
1.0.3 release
* python binding build fix for boost-1.57.0
* add --enable-export-all option to configure script, to export all symbols
from libtorrent
* fix if_nametoindex build error on windows
* handle overlong utf-8 sequences
* fix link order bug in makefile for python binding
* fix bug in interest calculation, causing premature disconnects
* tweak flag_override_resume_data semantics to make more sense (breaks
backwards compatibility of edge-cases)
* improve DHT bootstrapping and periodic refresh
* improve DHT maintenance performance (by pinging instead of full lookups)
* fix bug in DHT routing table node-id prefix optimization
* fix incorrect behavior of flag_use_resume_save_path
* fix protocol race-condition in super seeding mode
* support read-only DHT nodes
* remove unused partial hash DHT lookups
* remove potentially privacy leaking extension (non-anonymous mode)
* peer-id connection ordering fix in anonymous mode
* mingw fixes
1.0.2 release
* added missing force_proxy to python binding
* anonymous_mode defaults to false
* make DHT DOS detection more forgiving to bursts
* support IPv6 multicast in local service discovery
* simplify CAS function in DHT put
* support IPv6 traffic class (via the TOS setting)
* made uTP re-enter slow-start after time-out
* fixed uTP upload performance issue
* fix missing support for DHT put salt
1.0.1 release
* fix alignment issue in bitfield
* improved error handling of gzip
* fixed crash when web seeds redirect
* fix compiler warnings
1.0 release
* fix bugs in convert_to/from_native() on windows
* fix support for web servers not supporting keepalive
* support storing save_path in resume data
* don't use full allocation on network drives (on windows)
* added clear_piece_deadlines() to remove all piece deadlines
* improve queuing logic of inactive torrents (dont_count_slow_torrents)
* expose optimistic unchoke logic to plugins
* fix issue with large UDP packets on windows
* remove set_ratio() feature
* improve piece_deadline/streaming