CHANGELOG.md

Change Log

[10.1.0] Unreleased

• Add lock_timeout in fiber::Mutex to wait no more than needed

[10.0.0] Oct 2 2025

• Introduced AuthMethod::ScramSha256 for a new auth method in Picodata.

[9.0.0] Oct 1 2025

Changed

• Unpinned the version of linkme crate (0.3.29 -> 0.3).

• Replaced dependency from unmaintained dlopen crate to libloading of version 0.3.

• Replaced dependency from unmaintained proc-macro-error crate to proc-macro-error2 of version 2.

Fixed

• Unpinned the version of time crate from a two-year old 0.3.17
• space::Space::bsize now returns box.space.<space_name>:bsize() instead of box.space.<space_name>.index[0]:bsize()

Breaking

• As of RUSTSEC-2025-0052, async-std is not supported or maintaned anymore. We've removed this package as the dependency, it's re-exports, and the same with the implicit feature flag it added to the workspace.

Added (picodata)

• network::protocol::Config::cluster_uuid optional field. When set, the client sends an IPROTO_ID message carrying this cluster_uuid immediately after greeting. This enables clients to ensure they connect only to an instance from the same cluster.
• Added TLS support for iproto client (via new TlsStream).

Changed (picodata)

• Handshake may include an ID phase before auth when cluster_uuid is provided. If a vanilla Tarantool responds to IPROTO_ID with ER_INVALID_MSGPACK, the client ignores it for compatibility and proceeds with authentication/ready state.

[8.0.0] Jun 24 2025

Changed

• Unpinned the version of tokio crate optional dependency

Fixed

• Fix tlua::Push, tlua::PushInto and tlua::LuaRead derive macros to support default values for type parameters, and tlua::LuaRead to support default values for default values for const parameters.

Deprecated

Breaking

• Split a single index::Part type into Part<String>, Part<u32> and Part<NumOrStr>, depending on the accepted/returned types by the tarantool API

[7.0.0] May 26 2025

Added

• AuthMethod::DEFAULT represents the default value of AuthMethod, but is available in constant contexts.
• Support MsgPack ExtType encoding and decoding via ExtStruct
• Support Tuple msgpack decoding
• Support Decimal, UUID, Datetime msgpack encoding and decoding

Changed

• 1.82 is now MSRV.

Fixed

• network::protocol::codec::Header::encode will not truncate to u8 an network::protocol::codec::IProtoType integer from an outside stream at decoding.

Deprecated

Breaking changes

• Use extern "C-unwind" instead of extern "C" for lua ffi functions, which seems to help with lua_error!() in release builds on recent versions of rust.

Added (picodata)

• ffi::sql::PortC either allows to append tuples and msgpacks to the port or to iterate over the port data. It is also possible to manipulate with PortC from the FunctionCtx of the called function.
• Introduce sql::sql_execute_into_port and sql::Statement::execute_into_port methods. Now it is possible to store SQL results directly into the port.

Changed (picodata)

Fixed (picodata)

Breaking changes (picodata)

• AuthMethod::default() is now Md5, not ChapSha1.
• tarantool::tuple::Tuple::{as_named_buffer, names, name_count} did not find their use, so they are now logging an error message and panic. These functions are scheduled for removal in next major release and labeled as deprecated.

Deprecated (picodata)

[6.1.0] Dec 10 2024

Added

• network::client::tcp::TcpStream not supports async connection, provided with connect_async and connect_timeout_async methods
• impl Default for log::TarantoolLogger

Changed

• error::Result type alias now has another generic parameter E, which defaults to tarantool::error::Error, but allows this type alias to be used as a drop in replacement from std::result::Result.

Fixed

• network::client::tcp::TcpStream does not close underlying fd anymore. Now fd will be closed only when the last copy of tcp stream is dropped.

Deprecated

• network::client::tcp::UnsafeSendSyncTcpStream is now deprected. network::client::tcp::TcpStream should be used instead.

[6.0.0] Nov 20 2024

Added

• tlua::Push trait implementations for OsString, OsStr, Path, PathBuf
• tlua::LuaRead trait implementations for OsString, PathBuf
• tlua::LuaTable::metatable which is a better alternative to the existing tlua::LuaTable::get_or_create_metatable
• ffi::tarantool::box_schema_version and ffi::tarantool::box_session_id functions
• network::protocol::SyncIndex::get method
• network::protocol::codec::{LegacyCall, Nop, Prepare, Begin, Commit, Rollback} variants
• network::protocol::codec::Header::encode_from_parts function
• network::protocol::codec::Header::{encode, decode} functions
• network::protocol::codec::iproto_key::SQL_INFO constant
• Added optional field connect_timeout to network::protocol::Config. Used in network::client::Client::connect_with_config for restricting time connection establishment.
• Untagged enum represention as in serde with #[encode(untagged)] attribute
• tlua::Nil now supports (de)serialization via serde

Changed

• network::protocol::codec::IProtoType uses C language representation
• cbus::sync::std::ThreadWaker now uses internal thread FIFO queue when blocking threads on send.
• #[tarantool::proc] attribute doesn't add procs to a global array unless stored_procs_slice feature is enabled.
• proc::all_procs will now panic if stored_procs_slice feature is disabled.

Fixed

• tlua::{Push, PushInto, LuaRead} now work for HashSet & HashMap with custom hashers.
• Use after free in fiber::Builder::start_non_joinable when the fiber exits without yielding.
• Incorrect, off-spec MP Ext type: caused runtime errors on some platforms.
• Panic in coio test starting from 1.80 Rust.
• Impossible to use procedural macros(like tarantool::proc, tarantool::test) through reexporting tarantool.

Deprecated

• tlua::LuaTable::get_or_create_metatable is deprecated now in favor of tlua::LuaTable::metatable.

Breaking changes

• Use extern "C-unwind" instead of extern "C" for all trampolines which take *mut ffi::lua_State (checked with rg 'extern "C".*lua_State'). tlua::error! throws an exception to unwind the stack, hence we need to use a proper ABI to fix UB in picodata.

Breaking changes (picodata)

• Add session ID to the argument list of the sql_prepare_ext.
• Replace sql_unprepare with sql_unprepare_ext (contains an additional session ID argument).

[5.0.0] Aug 06 2024

Added

• say_info, say_verbose, say_debug, say_warn, say_crit, say_error, say_fatal, say_sys_error macros for basic logging into the tarantool's default logger. Use these when you need to log messages, but don't have any facilities set up for this, e.g. internally in tarantool-module code.
• log::{current_level, set_current_level} for setting/getting current log level of the default logger without going through lua.
• error::Error::ConnectionClosed variant which can happen when converting from errors returned from network::client.
• tlua::as_table macro for more straight-forward creation of lua tables compared to naked tlua::AsTable.
• fiber::NoYieldsGuard helper struct for scope-level guarding against yields. Can be used to assert that a function or it's portion must not yield.
• fiber::NoYieldsRefCell a RefCell replacement for fiber-safety. Will cause a panic if a value is borrowed across yields. Also displays the source location of the last borrow unlike the standard RefCell.
• Tuple::to_vec method to get raw msgpack bytes from Tuple.
• BoxError::{file, line, errno, cause, fields} methods for getting the corresponding info from the tarantool error (currently only work for remote errors).
• BoxError::{new, with_location} constructors useful for returning structured error info from stored procedures.
• BoxError::set_last method for setting the info about the last error in the current fiber. Useful for returning structured error info from stored procedures.
• error::set_last_error function. It's similar to tarantool::set_error! macro, but the new function also supports specifying an explicit source location, while the old macro always uses the caller's location.
• error::IntoBoxError trait. Implement this for your error types to return structured error info from stored procedures defined with #[tarantool::proc], or just use BoxError directly.
• network::client::tcp::TcpStream::connect_timeout method.
• Now test attribute supports adding a compile time conditional expression for the should_panic argument, i.e. #[tarantool::test(should_panic = cfg!(debug_assertions))]
• anyhow feature that adds IntoBoxError impl for anyhow::Error so anyhow::Result could be returned from the stored proc.
• tarantool::time::INFINITY reexport from tarantool::clock::INFINITY for convenience.
• tarantool::time::Instant::{now_fiber, now_accurate} methods with more descriptive names then before. Use now_fiber when computing timeouts, use now_accurate when benchmarking.
• #[encode(as_raw)] on struct fields and enum variants with Vec<u8> type, representing raw MessagePack.
• added Decimal::into_raw functions
• added Tuple::as_ptr functions
• Custom Encode/Decode allows skipping Option fields
• added support for zero-copy string decoding via tarantool::msgpack::encode::Decode trait as &str.
• serde_bytes::Deserialize implementation for Tuple.
• TupleFormat::as_ptr method.

Changed

• tarantool::error::TarantoolError is renamed BoxError. The old name is still available via a type alias, and is not yet deprecated so as not to break too much code, but in future it will be deprecated.
• network::client::{Client, ReconnClient}::send now returns one of the new error variants: ConnectionClosed, RequestEncode, ResponseDecode or ErrorResponse.
• tarantool::error::Error::Remote variant is no longer disabled without the net_box feature.
• tarantool::set_error! macro will now use the caller's location, so if it's called from a function marked #[track_caller], the log message will contain that function's call site, instead of the location of the macro call itself.
• Decimal type is now backed by builtin tarantool decimal implementation. The only expected difference is slight change in formatting (lack of scientific notation).
• datetime from_ffi_dt and as_ffi_dt functions now public
• DecodeError has now better error messages with report of deeply nested values and actual MessagePack type is reported at type mismatch.
• schema::space::generate_space_id is now public function.

Fixed

• tests on macos
• Used to panic when implicitly converting a 64-bit integer to a Decimal inside an arithmetic operation, due to global context contention.
• network::ReconnClient::with_config constructor now has pub visibility, so it's now possible to use it with non-default credentials.
• Bug in legacy net_box client which resulted in a deadlock when receiving an error during authentication.
• Bug in legacy net_box client which resulted in a deadlock when sending requests after receiving a previous error response.
• Use after free when calling BoxError::error_type in some cases.
• Bug in define_str_enum in Decode implementation - the slice reference was not modified after decoding.
• tarantool::set_error used to do undefined behaviour when the message contained formatting sequences of %n sort.
• Used to panic when logging messages which contained nul-bytes.
• Pushing ViaMsgpack didn't work in release mode.
• Enums defined with define_str_enum! can now deserialize from owned String. Could be seen when deserializing from rmpv::Value::String.
• Stored procedures defined with #[tarantool::proc] used to fail to compile with doc-comments on the function parameters.
• msgpack::skip_value now returns error in case there wasn't enough data to skip a msgpack value.
• Bug in Tuple::format which could result in undefined behaviour (aka use after free).
• tlua::Push and tlua::PushInto can now be used on non-empty structs and enums with default values for constant generics.

Deprecated

• network::client::Error is now a deprecated alias for network::ClientError
• network::protocol::Error is now a deprecated alias for network::ProtocolError
• network::protocol::ResponseError is now a deprecated alias for error::BoxError
• error::Encode is now a deprecated alias for error::EncodeError
• tarantool::set_and_get_error! macro is deprecated in favor of BoxError::new.
• tarantool::time::Instant::now is deprecated, now you need to choose between now_fiber (likely) and now_accurate.
• index::Index::extract_key is now deprecated because it has a weird interface and semantics. You should use tuple::KeyDef::extract_key instead.

Breaking changes

• BoxError::error_type now returns a &str instead of String.
• network::protocol::Config struct is now marked as #[non_exhaustive], so that we can add fields to it in the future without breaking backwards compatibility. Now it should always be constructed like so Config { foo, bar, ..Default::default() }.
• network::protocol::codec::encode_auth now takes an additional auth_method parameter.
• network::protocol::{Config, api::Auth} & net_box::options::ConnOptions, now have an additional field auth_method.
• error::{Error, TarantoolErrorCode} & network::client::tcp::Error enums are now marked as #[non_exhaustive] for future compatibility.
• Removed network::client::Error::{Tcp, Io, Protocol} variants as they were confusing to work with.
• Removed impl From<{TcpError, io::Error, ProtocolError}> for network::client::Error.
• Most of the variants from network::ProtocolError were removed, because they are duplicated with ones in tarantool::error::Error, only the unique ones are left.
• tarantool::error::Error::Protocol now contains a ProtocolError which is no longer wrapped in an Arc.
• Methods of network::protocol::Protocol now return tarantool::error::Error instead of network::ProtocolError.
• Functions in network::protocol::codec now return tarantool::error::Error instead of network::ProtocolError.
• Remove parameter limit from method network::client::AsClient::execute, which was never used correctly.
• Make network::client::tcp::TcpStream::connect non blocking and sync.
• msgpack::encode no longer returns Result as it should not fail.
• Stored procedures defined with #[tarantool::proc] no longer compile with some error return types. Previously error type required only trait std::fmt::Display, but now it requires tarantool::error::IntoBoxError. This means that most error types from third-party crates are no longer supported, but tarantool::error::Error, Box<dyn Error> & even String still work.
• tarantool::set_error! macro now returns () instead of -1_i32 as it did previously
• tarantool::tuple::Tuple::decode does not support partial decoding anymore. Also any methods/functions which use rpm_serde have same effect.
• tarantool::msgpack::encode::Decode now requires a lifetime parameter.

Added (picodata)

• Support for AuthMethod::Ldap in net_box & network::client.
• Support for AuthMethod::MD5 in net_box & network::client.
• Expose box_generate_func_id to generate function identifiers for reserved and default ranges in _func space.
• Tuple::data method for getting access to tuple data as a slice of bytes.
• PartialEq, serde_bytes::Serialize implementations for Tuple.
• tuple::TupleBuilder helper struct for creating Tuple instances with a special experimental rust allocated implementation.
• TupleFormat::with_rust_allocator constructor for the special experimental rust allocated implementation of tuple virtual table.

Changed (picodata)

• Tuple::decode & ToTupleBuffer implementation for Tuple is now a bit more efficient because one redundant tuple data copy is removed.

Fixed (picodata)

Breaking changes (picodata)

• SQL module was totally refactored: all its public structures functions and FFIs have been changed.

[4.0.0] Jan 12 2024

Added

• impl<E: Into<Error>> From<TransactionError<E>> for Error.
• transaction::is_in_transaction, transaction::begin, transaction::commit, transaction::rollback shallow wrappers around corresponding ffi functions. These are useful for specific non-trivial cases, but for most users transaction::transcation is suitable.
• space::space_id_temporary_min function for getting minimum space id in the fully temporary space id range.
• msgpack::encode module which contains custom Encode, Decode traits and correponding derive macros for serialization to/from msgpack without using serde.
• FiberId type alias.
• fiber::id, fiber::csw_of, fiber::name, fiber::name_of, fiber::name_raw fiber::set_name, fiber::set_name_of, Fiber::id, Fiber::id_checked, fiber::JoinHandle::id, fiber::JoinHandle::id_checked functions for getting and setting the corresponding properties of fibers and ffi::has_fiber_id function for checking if the corresponding api is supported in the current tarantool version.
• fiber::exists function for checking if fiber with given id exists.
• fiber::JoinHandle::cancel for cancelling the fiber by it's join handle.
• fiber::JoinHandle::wakeup for waking up the fiber by it's join handle.
• fiber::cancel function for cancelling the fiber by id.
• fiber::wakeup function for waking up the fiber by id.
• fiber::Builder::{start_non_joinable, defer_non_joinable} functions for spawning non-joinable fibers. These functions return the fiber id, if the corresponding api is supported in your tarantool version. If not, you can use fiber::id, which works on older versions by using lua api.
• fiber::Cond::wait_deadline for waiting until tarantool::time::Instant rather than a Duration. Uses fiber::clock internally.
• fiber::r#async::timeout::{deadline, IntoTimeout::deadline} for constraining futures with an explicit deadline.
• util::str_eq function for comparing strings at compile time.
• define_enum_with_introspection enum for defining enums with some introspection facilities including type-safe conversion from integers and MIN, MAX & VARIANTS associated constants. For more details see the implementation.
• define_str_enum now also uses define_enum_with_introspection internally so that these enums also have the introspection facilities.
• Vclock::cmp_ignore_zero method for comparing vclocks from different replicas.
• tarantool::proc::Proc::is_public attribute which returns true if the stored procedure defined with #[tarantool::proc] has a pub visibility modifier or has an explicit (public = true) attribute. (public = false) also works.
• tarantool::error::Error::variant_name method for getting name of the error variant, because somebody needs this.
• tarantool::static_assert macro for adding checks that run at compile time.
• tuple::KeyDef::{extract_key, extract_key_raw} methods for extracting index keys from tuples.
• tuple::KeyDef::validate_tuple method for checking if tuple contains the index key.
• impl TryFrom<&index::Metadata> for tuple::KeyDef
• network::client::tcp::UnsafeSendSyncTcpStream hack which is necessary to work with third-party async libraries.

Changed

• define_str_enum macro now also adds msgpack::{Encode, Decode} implementations.
• Fibers created with fiber::start, fiber::defer and/or fiber::Builder are now always marked as cancellable. On newer versions of tarantool fibers cannot be made non-cancellable, so we explicitly do the same for older versions.
• tarantool::{c_str, c_ptr} macros now check at compile time if the provided literal contains a nul byte, and therefore they aren't unsafe anymore.
• When spawning fibers via the fiber::Builder api if the fiber name contains a nul-byte an error will be returned instead of panicking.

Fixed

• define_str_enum will no longer produce warning "& without an explicit lifetime name cannot be used here". For more information, see rust-lang/rust#115010.
• #[tarantool::test] declares a special static variable which is usually invisible to the users, but previously it would have a not so unique name which would sometimes lead to name conflicts with user-defined items. This has been changed and the conflicts are now less likely to occur.
• Use after free when catching a panic after a drop of a non-joined join handle. Memory is now leaked instead.
• schema::space::create_space, Space::create & space::Builder::create will no longer yield twice. After recent changes to space id generation we have introduced some race conditions when spaces are created concurrently in separate fibers. Under heavy load this could result in attempts to create spaces with repeating ids. This is now fixed.
• Some tests were broken on tarantool builds from master branch.
• Removed an erroneously added print statement from Vclock::ignore_zero.
• tlua::error! macro now expands the format even when no arguments are specified. Before this tlua::error!(lua, "{var}") would return error containing literally the message "{var}", but now it will use the value of var variable in the current scope.

Deprecated

• tarantool::fiber::Fiber is now deprecated in favour of fiber::start, fiber::defer and/or fiber::Builder. This is because old api is among other things unsafe as it may result in crashes or even worse. See doc-comments for more info.

Breaking changes

• Remove erroneously added clap::ArgEnum implementation for AuthMethod.
• Removed deprecated trait AsTuple
• Removed deprecated Tuple methods from_struct, as_struct & into_struct
• Removed deprecated FunctionArgs method as_struct
• enums TarantoolErrorCode, IteratorType, SayLevel & SystemSpace no longer implement trait ToPrimitive, just use as i32 instead.
• rmp library reexport is moved from tuple module to msgpack module.
• fiber::csw now returns u64 instead of i32.
• Removed datetime::Error::ErrorEpochTypeConvert as it's never used.
• TarantoolErrorCode & SayLevel no longer implement num_traits::FromPrimitive.
• tlua::error! macro no longer prepends file:line:column to the error message when called with a single string literal. This used to be done as an optimization because we could do it for free at compile time, but now the code is simpler and the source location was unreliable anyway (didn't take into account #[track_caller]).
• space::SPACE_ID_MAX constant's value is decreased by one and now has the same value as in tarantool-3.0. Most likely you shouldn't care about this, but in some rare cases we may forbid you from creating a space with id 0x7fff_ffff.
• error::Error enum now contains errors from msgpack::encode module in MsgpackEncode and MsgpackDecode variants correspondingly.
• error::Error enum now contains Other variant which can contain an value of a type which implements Error + Send + Sync traits.
• index::Part::{collation, path} builder methods now take a impl Into<String> instead of String. This shouldn't be a problem for you unless you're calling them like Part::path(p.into()), in which case just remove the .into().
• index::Index::extract_key method is now unsafe, because it is unsafe and may cause crashes if called with invalid arguments.
• network::client::tcp::TcpStream no longer implements Send & Sync traits, because it's not safe to use it outside the thread it was created in.
• Removed network::client::tcp::TcpStream::close_token method & network::client::tcp::CloseToken struct using which would invoke undefined behaviour.

Added (picodata)

• struct read_view::ReadView for opening read views on selected spaces.
• Expose box_access_check_space to be able to run access checks on spaces externally
• Expose box_access_check_ddl to be able to run more access checks on spaces, users, roles and functions externally.
• ffi logger functions log_set_format and log_default_logger
• ffi cord (tarantool thread) functions current_cord_name, cord_is_main_dont_create and cord_is_main
• cbus::sync module with any thread to cord (TX thread) synchronous channels

Fixed (picodata)

• A race condition causing undefined behaviour due to fiber_cond_delete being called outside tx sometimes
• A race condition causing unbounded channel receiver too block the thread forever
• A race condition in cbus unbounded channels when two threads write into one LCPipe

Breaking changes (picodata)

• Changes in the cbus LCPipe api: now LCPipe::push_message requires mutable self reference
• cbus::unbounded::Sender::send return a Result type instead of nothing
• cbus::Message now require a Send implementation on a callback function

[3.0.1] Sep 28 2023

Fixed

• Change tarantool-proc version to fix backwards compatibility

[3.0.0] Sep 26 2023

Added

• With the new async-std feature flag network::client::tcp::TcpStream implements async Read and Write traits from async-std crate instead of futures.
• box.session.su API is now supported. When building for picodata with picodata feature enabled this API will use C-API directly. When used with vanilla tarantool lua polyfill is used.
• New tarantool::session::user_id_by_name API is available when running picodata.
• New AuthData generates authentication data when running picodata (a wrapper over box_auth_data_prepare symbol from the C API).
• Authentication methods enum (AuthMethod) was added to the module.
• Method space::Builder::space_type, field SpaceCreateOptions::space_type and enum SpaceType which is now the primary way of specify the type of space.
• Fully-temporary spaces can now be created, destroyed and indexes can be created for them as well (see SpaceType::Temporary). This feature requires your tarantool executable to support some low level APIs, you can use the newly added ffi::has_fully_temporary_spaces function to check if the required APIs are supported.
• SystemSpace::as_space method for easier conversion to Space.
• schema::space::space_metadata function
• space::SPACE_ID_MAX constant with a value of the maximum possible space id.
• ViaMsgpack wrapper type for passing values to/from lua by converting them to msgpack first.
• msgpack::ValueIter::len method which returns array length if it's known.

Fixed

• tarantool::log::say used to do undefined behaviour when the message contained formatting sequences of %n sort.
• performance issues when sending large amounts of data via network::client.

Changed

• network::client::tcp::TcpStream will now always try IPv4 addresses first when connecting.
• tarantool::session::uid and tarantool::session::euid when running picodata now use native C-API instead of calling into Lua.
• Updated some doc comments for Space and Index methods.

Deprecated

• Methods temporary, is_local & is_sync of struct space::Builder are deprecated in favour of new method space_type.
• schema::space::SpaceMetadata is now a deprecated alias of space::Metadata.
• network::client::tcp::Error variants ResolveAddress & Connect now contain the address for which the corresponding operation has failed.

Breaking changes

• tarantool::session::uid and tarantool::session::euid now return UserId type which is an alias for u32. Previously isize was used.
• SpaceCreateOptions fields is_temporary, is_local & is_sync are removed in favour of new field space_type.

[2.0.0] Aug 28 2023

Added

• tarantool::log::TarantoolLogger::convert_level method for converting log::Level to SayLevel taking the mapping function into account.
• tlua::Push and tlua::LuaRead implementations for SayLevel.
• examples/luaopen example of how to implement native lua modules.
• tarantool::cbus module for communication between any arbitrary thread and tarantool thread via syncronization primitives (channels) and low-level cbus api.
• tarantool::time::Instant a custom implementation of std-like Instant with more saturating operations and support of the fiber_clock API.
• r#async::sleep - an async friendly analog of fiber::sleep.
• SpaceEngineType variants SysView, Blackhole and Service which cannot be created by users, but can be deserialized from contents of _space system space.
• fiber::Builder::defer_ffi & fiber::Builder::defer_lua low-level functions. Users should use fiber::Builder::defer instead in most cases.

Changed

• fiber::defer will now use a more efficient implementation on newer versions of tarantool.

Fixed

• log::Log::enabled implementation for TarantoolLogger no longer ignores the mapping provided at construction.
• A copy of fiber name used to leak in Fiber::new and Fiber::new_with_attr.
• tarantool::decimal api is now thread safe, which allows it to be used in concurrent threads.

Deprecated

• fiber::start_proc, fiber::defer_proc, fiber::Builder::proc, fiber::Builder::proc_async: in favor of fiber::start, fiber::defer, etc. These used to be implemented with optimizations, but now their internals are simplified and unified, so there's now no difference between the "proc" and "non-proc" variants. This may result in minor performance degradation in debug builds, but in release builds there shouldn't be any difference.
• fiber::UnitJoinHandle, fiber::LuaJoinHandle & fiber::LuaUnitJoinHandle are now just aliases to fiber::JoinHandle and are deprecated.

Breaking Changes

• transaction::start_transaction has a more flexible error handling, and is renamed to transaction::transaction
• fiber::clock now returns tarantool::time::Instant
• fiber::time and fiber::time64 returning non-monotonic time removed. If calendar time is needed, use std::time::SystemTime.
• tlua::PushIterError::TooManyValues now stores how many values were attempted to be pushed.
• <tlua::AsTable as Push>::Err changed from PushIterError to AsTablePushError.
• fiber::clock64 removed in favor of a new Instant based fiber::clock API
• Error::Decode now contains expected rust type and actual incorrect msgpack contents.
• sql::Statement::execute now returns Error::DecodeRmpValue.
• Removed a lot of helper structs and traits from fiber module, including fiber::LuaFiber, fiber::FiberFunc, etc. Users should not have been using those anyway, because fiber::start, fiber::defer, fiber::Builder::start, fiber::Builder::defer exist.
• Changed return types of function which spawn fibers. Now a single fiber::JoinHandle type is used everywhere.

[1.1.0] Jun 16 2023

Added

• vclock::Vclock data structure representing Tarantool vector clock (box.info.vclock Lua interface).
• vclock::Lsn type alias for u64 representing Tarantool log sequence number.
• ToTupleBuffer::tuple_data method which returns Option<&[u8]>. It's only implemented for wrapper types (TupleBuffer, RawBytes, RawByteBuf) as an optimization to avoid extra copies.
• impl ToOwned<Owned = RawByteBuf> for RawBytes
• impl Borrow<RawBytes> for RawByteBuf

Fixed

• Doc comments are no longer lost for functions marked with #[proc] attribute.
• Error when compiling with --no-default-features.
• cargo test link failure when a #[::test] is defined in the same mod with a #[tarantool::proc] on MacOS.

Changed

• Marked trivial functions with #[inline] attributes in mods tuple, index, space.

[1.0.0] May 29 2023

Added

• fiber::Builder::func_async and fiber::Builder::proc_async - methods for easier construction with Builder of fibers executing Future
• tlua::CFunction wrapper struct to push C functions as values into lua.
• #[tarantool::test] macro attribute for defining test functions and adding them into a global list of test cases. Requires --features=test.
• test::test_cases & test::collect_tester functions for accessing the global list of test cases. This can be used to implement a custom testing harness. Requires --features=test.
• test::TestCase struct which is used internally in #[tarantool::test] and is returned by test::test_cases. Requires --features=test.
• ffi::tarantool::Proc type alias for a tarntool stored C function.
• proc::all_procs helper function which returns a global slice of proc::Proc - descriptions for stored procedures defined with #[tarantool::proc].
• proc::module_path helper function for getting a path to the dynamically linked object file in which the given symbol is defined.
• msgpack::ArrayWriter helper struct for generating msgpack arrays from arbitrary serializable data.
• msgpack::ValueIter helper struct for iterating over msgpack values.
• tarantool::network::client alternative async network client.
• tarantool::network::client::reconnect reconnecting async network client based on network::client.
• tarantool::network::protocol sans-io (without transport layer) implementation of Tarantool Binary Protocol. Serves as a base for network::client, but can be also used independently by other client implementations.
• r#async::timeout::Error enum with Expired and Failed vairants.
• r#async::timeout::Result<T, E> type alias for std::result::Result<T, r#async::timeout::Error<E>>
• Space::from_id_unchecked unsafe function, for creating a space struct from a space id.
• Index::from_ids_unchecked unsafe function, for creating a index struct from space and index ids.
• examples/tokio-hyper example of using tarantool with tokio + hyper
• std::ops::Deref<Target = str> implementation for enums defined with tarantool::define_str_enum.
• Into<&'static str> implementation for enums defined with tarantool::define_str_enum.
• WrongType::[info|when|actual*|expected*|subtype*] constructor methods to be used in impl LuaRead for user defined types.
• impl LuaRead for TupleBuffer.
• LuaTable::try_get method for checking which error happened.
• fiber::r#async::Mutex an async Mutex, with guard that can be held across await points.
• TarantoolError::message() method for getting just the error message.
• T::as_cstr method returning std::ffi::CStr is now implemented for enums defined with tarantool::define_str_enum.
• T::values method returning a static slice of static str variant names is now defined for enums defined with tarantool::define_str_enum.
• index::Metadata struct representing tuples stored in _index system space.
• Index::meta method for getting index metadata from _index system space.
• Index::id & Index::space_id accessor methods for getting ids.
• tuple::KeyDefPart helper struct for constructing tuple::KeyDef, it also has try_from_index_part constructor method which accepts index::Part.
• IndexMetadata::to_key_def method for creating a tuple::KeyDef instance from index metadata. Can be used to compare tuples with a key.
• IndexMetadata::to_key_def_for_key method for creating tuple::KeyDef similar to to_key_def but is used for comparing just the keys themselves.
• IndexId and SpaceId type aliases

Changed

• r#async::timeout::Timeout can now only be wrapped around a future which resolves into a std::result::Result<T, E> and timeout itself now resolves into r#async::timeout::Result.
• LuaRead methods now return WrongType error in case of failure.
• LuaRead for Tuple now accepts arbitrary lua tables, not only tuples.
• KeyDef::new now accepts iterator over references to KeyDefPart and returns a result.
• All functions which take t: &T where T: ToTupleBuffer, now allow T to be unsized (?Sized), e.g. tuple::RawBytes

Fixed

• Performance issue with fiber::csw() and fiber::check_yield() that caused tests failure.

Removed

• r#async::timeout::Expired in favor of r#async::timeout::Error
• tuple::KeyDefItem in favor of tuple::KeyDefPart.
• feature = "schema". Now the functionality is supported by default

[0.6.5] Apr 5 2023

Changed

• TarantoolError's Display implementation will no longer lookup the error code in lua in case it's not found in TarantoolErrorCode enum.

Fixed

• Link errors when Display::fmt is called for tarantool::error::Error from rust unit tests
• Used to have wrong crate versions for internal dependencies (tlua, tarantool-proc, etc.)

[0.6.4] Dec 15 2022

Added

• tarantool::space::UpdateOps helper struct for use with update & upsert methods of Space & Index.
• impl ToTupleBuffer for TupleBuffer
• serde_bytes::[Des|S]erialize implementations for TupleBuffer & RawByteBuf
• #[derive(Clone, PartialEq, Eq)] for TupleBuffer & RawByteBuf
• Space & Index now have update_raw & upsert_raw methods that accept serialized arguments.
• space::FieldType::Varbinary, space::FieldType::Datetime, space::FieldType::Interval, space::FieldType::Map.
• tarantool::Space::Field::varbinary, tarantool::Space::Field::datetime, tarantool::Space::Field::interval, tarantool::Space::Field::map.
• index::FieldType::Datetime.
• impl Debug for Index.
• space::Field now implements From<(S, space::FieldType)> & From<(S, space::FieldType, IsNullable)> where S: Into<String>, which can be used in the space::Builder::field and space::Builder::format methods.
• space::IsNullable helper enum.
• space::Builder::into_parts & index::Builder::into_parts for accessing inner structs.
• tlua::LuaRead, tlua::Push & tlua::PushInto derive macros now support new-type style tuple structs: they are treated as the inner type.
• impl tlua::PushInto for Tuple.
• net_box::promise::TryGet::into_res and From<TryGet<_, _>> for Result<_, _>.
• impl [tlua::LuaRead|tlua::Push|tlua::PushOne] for tlua::Object.
• fiber::Mutex's methods lock & try_lock now will log the location of last successful lock when built with debug_assertions.
• #[track_caller] added to tlua functions that can panic.
• A clarification in tarantool::proc documentation about the safety of using borrowed arguments.
• impl LuaRead for StaticLua: this is mainly useful for capturing the lua context passed to rust-callbacks for example for use with tlua::error!. See test error in tests/src/tlua/functions_write.rs for examples.
• Add tlua::Throw wrapper type for throwing lua errors from an error returned by rust callback.
• Doc-comments here and there.
• fiber::r#yield function for yielding fibers likewise tarantool LUA api.
• #[derive(Copy)] for a bunch of light enums including TarantoolErrorCode, SayLevel, SystemSpace, FieldType.
• define_str_enum macro suitable for public use.
• fiber::csw function for tracking fiber context switches.
• fiber::check_yield function for easier testing.
• fiber::r#async module with a simple fiber based async/await runtime.
• fiber::block_on function for executing a Future on a fiber based async/await runtime.
• fiber::r#async::timeout::{timeout, IntoTimeout} utilities for constraining futures with a timeout (only works with the fiber based async/await runtime!).
• fiber::r#async::oneshot an async/await oneshot channel (inspired by tokio::sync::oneshot).
• fiber::r#async::watch an async/await watch channel (inspired by tokio::sync::watch).
• fiber::{start_async, defer_async} for executing a future in a separate fiber.

Removed

• raft cfg feature that wasn't finished and will never be.
• tests/test.sh script for running tests (cargo test can now be used).

Fixed

• TupleBuffer no longer copies data into tarantool's transaction memory pool in TupleBuffer::from_vec_unchecked, which previously would result in a use after free in some cases.
• impl<_> From<tlua::PushIterError<_>> for tlua::Void is now more general which allows more types to be used in contexts like tlua::Lua::set, etc.
• tests/run_benchmarks.lua now works again.

Changed

• TarantoolError::error_code now returns a u32 instead of TarantoolErrorCode.
• TarantoolError's Display implementation will lookup the error code in lua in case it's not found in TarantoolErrorCode enum.
• TarantoolErrorCode::NoSuchFieldName is renamed TarantoolErrorCode::NoSuchFieldNameInSpace.
• TarantoolErrorCode::BootstrapReadonly's value changed from 201 to 203.
• update! & upsert! macros are now more efficient due to the use of update_raw & upsert_raw.
• SpaceCreateOptions::default now sets is_local & is_temporary to false.
• space::SpaceFieldType is renamed space::FieldType. And space::SpaceFieldType is now a deprecated type alias.
• index::IndexFieldType is renamed index::FieldType. And index::IndexFieldType is now a deprecated type alias.
• enums SpaceEngineType, space::FieldType, IndexType, index::FieldType & RtreeIndexDistanceType now all
  • implement Display,
  • implement std::convert::AsRef<str> & std::convert::Into<String>,
  • implement std::str::FromStr,
  • implement tlua::Push, tlua::PushInto, tlua::LuaRead.
  • have a const fn as_str.
• space::Builder::field now accepts impl Into<Field>.
• space::Builder::format now accepts impl IntoIterator<Item = impl Into<Field>>.
• index::Builder::parts now accepts impl IntoIterator<Item = impl Into<Part>>.
• space::Field constructors accept impl Into<String>.
• Space, Index, RemoteSpace & RemoteIndex mutating methods now don't require self to be borrowed mutably. This is safe, because the only mutation those methods do is confined in the tarantool api, which is robust with respect to what rust mutability rules are supposed to protect from (except for thread safety, which is not supported by any of tarantool apis). Relaxing the &mut self requirement greatly increases the api's ease of use with the only downside of added compile warning of "variable does not need to be mutable" which is a small price to pay.
• In tlua if a lua error happens during code evaluation the location in the rust program where the code was created is now displayed in the error, i.e. the location of a call to Lua::eval, Lua::exec, etc. will be displayed.
• tlua::Lua::set function now has 2 generic parameters instead of 3 (not including lifetime parameters).

Deprecated

• update_ops & upsert_ops methods of Space & Index are deprecated in favour of update_raw & upsert_raw.

[0.6.3] Aug 08 2022

Added

• Tuples can now be used as parameters to functions like Space::get, Index::get, etc. (impl ToTupleBuffer for Tuple)
• Tuple fields can now be read as raw bytes (without deserializing) using &tarantool::tuple::RawBytes (borrowed) or tarantool::tuple::RawByteBuf (owned)
• Tuples can now be efficiently returned from stored procedures defined with #[proc] macro attribute. (impl Return for Tuple)
• Raw bytes can now be returned from stored procedures defined with #[proc] macro attribute using RawBytes or RawByteBuf.
• Stored procedures defined with #[proc] macro attribute can now accept borrowed arguments. For example #[proc] fn strlen(s: &str) -> usize { s.len() } now compiles.
• FunctionArgs::decode method for efficient decoding of the stored procedure arguments.
• tlua::Lua::eval_with & tlua::Lua::exec_with method for passing parameters in place of ... when evaluating lua code.
• tlua::Strict wrapper for reading lua numbers without implicit conversions.
• tlua::CData wrapper for reading/writing values as luajit cdata. Can be used work with primitve cdata types like numbers and pointers and also user defined structs.
• tlua::AsCData trait for user defined types which can represented as luajit cdata.
• tlua::CDataOnStack for working with luajit cdata efficiently within the lua stack. Can be used to read the raw cdata bytes or for passing cdata values into lua functions.
• Added support for reading/writing isize & usize in tlua.
• Tuple::new function for creating tuples from anything that can be converted to one.
• Tuple::decode method for converting tuple into something that implements DecodeOwned.
• tarantool::space::clear_cache function for clearing the cache in case it was invalidated.
• tarantool::space::Space::meta method for getting space metadata.
• tarantool::net_box::Conn::execute for executing remote sql queries.
• tarantool::trigger::on_shutdown function for setting a tarantool on_shutdown trigger.
• tlua::LuaRead, tlua::Push & tlua::PushInto derive macros now support generic structs & enums.
• picodata cfg feature for compatibility with picodata's tarantool fork.
• impl From<TupleBuffer> for Vec<u8>
• impl From<(u32, FieldType)> for KeyDefItem

Fixed

• Load type failure on tarantool 2.9 and later related to missing access to some internal symbols
• Rust callbacks of Option<T> failing when called from lua without arguments.
• tlua::LuaRead implementation for HashMap<K, V> no longer ignores conversion errors.
• Memory leak in tarantool::set_error! macro.
• LuaRead failing for some derived types related to enums with optional variants.
• test/tests.sh now supports custom cargo target directories.

Changed

• Most tuple accessor methods changed their bounds (used to require serde::Deserialize now require tuple::Decode) e.g. Tuple::get, TupleIterator::next, etc. This coincidentally means that you can read a tuple's field into a Tuple, but you probably don't want that.
• tarantool::decimal::Decimal is now implemented using the dec crate instead of tarantool built-in decimals (which are based on a patched version of the same decNumber library as the dec crate). This means there are minor changes in decimal's behavior (e.g. they're printed with scientific notation now, etc.) but nothing major.
• Decimal::log10 & Decimal::ln now return None in case of invalid values instead of panicking.
• KeyDef::new now accepts a generic impl IntoIterator<Item=impl Into<KeyDefItem>>

Deprecated

• AsTuple trait is now deprecated. User defined types should instead implement the new tarantool::tuple::Encode trait. And most of the api functions now require the parameters to implement tarantool::tuple::ToTupleBuffer (implemented for Encode types by default).
• Tuple::from_struct is deprecated. Use Tuple::new instead.
• Tuple::as_struct & Tuple::into_struct are deprecated. Use Tuple::decode instead.

[0.6.2] Jun 09 2022

Added

• Conn::call_async& Conn::eval_async functions for non-yielding network operations
• Space::find_cached& Space::index_cached functions better performance when accessing spaces and indexes
• injected & custom_ret arguments for tarantool::proc attribute macro
• builtin trait implementations for a number of types (Hash for Decimal, Decirialize, Clone, Debug for multiple space and index related structs inside)

Fixed

• decimal! macro can now be used
• fixed memory corruption in Decimal::to_string
• fixed is_sync space option not working
• add a blanket impl AsTuple for &T
• README typos and other mistakes
• doc tests now pass
• fixed "unused unsafe" warning in error! macro

[0.6.1] Apr 08 2022

Added

• upsert! macro for operations of different types
• tlua::AsTable wrapper for pushing/reading rust tuples as lua tables
• #[tarantool::proc] attribute macro for easy stored procedure definitions

Fixed

• c_char related compile errors on systems where c_char is unsigned
• Display not being implemented for some error types

[0.6.0] Mar 17 2022

Added

Added

• tlua::Lua::new_thread & tarantool::lua_state
• ability to set a custom filter for tarantool logger (see TarantoolLogger::with_mapping)
• AsTuple implementation for longer tuples
• CString & CStr support in tlua
• update_space macro for operations of different types
• tlua::TableFromIter
• FunctionCtx::as_struct for streamlined conversions
• std::fmt::Debug implementations for Tuple, TupleBuffer & others
• is_nullable setting for space field formats
• tlua::error macro for throwing a lua error from a rust callback
• LuaError::WrongType is returned if a rust callback receives incorrect arguments
• LuaRead implementation for [T; N]
• space/index creation builder api
• specifying index parts by json path
• fiber::Mutex
• Indexable, IndexableRW & Callable types for working with generic (not just builtin ones) indexable & callable lua values
• AsLua::pcall for calling rust functions in protected mode capturing any lua exceptions

Changed

• join handles returned by fiber::{start|defer}[_proc] now have a lifetime parameter, which allows non-static fiber functions
• conversions between Tuple, TupleBuffer and Vec<u8> have been reorganized and made safer
• reading Vec<T> from lua no longer ignores elements that failed to convert to T
• some tarantool::tuple operation signatures have been changed removing unnecessary Results, whenever an error cannot actually happen
• fiber::Channel only accepts 'static values now

Fixed

• tlua::push_userdata no longer requires arguments implement Send
• partially pushed tuples poluting the stack
• assertion violation when trying to create a tuple with incorrect msgpack data
• build for Arm MacOS

[0.5.1] Dec 24 2021

TODO