2.9

• Logging now supports fmt formatting in macro LOG_INFO("User {} logged in from {}", user_id, ip_address); and lambda formatting. See Logging and Tracing for more info.
• PostgreSQL driver now can disable all the statements logging via static config option statement-log-mode
• ClickHouse driver now supports doubles in the queries.
• YDB now can be used with GCC compiler, not only Clang. YDB still requires C++20 support
• components::Redis in sentinel mode now supports selection of database index via database_index in secdist config. Many thanks to Tikhon Sergienko for the PR!
• PostgreSQL cache (shadow replicas) traits now support kOrderBy. With DISTINCT ON expression in kQuery it allows to store only slices of data. Many thanks to Dmitry Kopturov for the PR!
• Added a userver-create-service script for creation of a new service. Github service templates are now deprecated.
• Notify on state change when it actually happens in Redis Standalone. Many thanks to Nikolay Pervushin for the PR!
• Modernized testsuite code, including removal of event_loop usages and usage of asyncio-socket.
• Hidden thread_id and task_id for INFO+ logger levels to made the logs shorter.
• Stack usage monitor now could be disabled in test via USERVER_GTEST_ENABLE_STACK_USAGE_MONITOR=1 environment variable.
• gRPC
  • Added support for debug_redact and added a recommendation to use [debug_redact = true]; instead of [(userver.field).secret = true];
  • Significant speed up logging of large requests and response messages. Note that request/response logs are by default enabled with global DEBUG logging level; the behavior could be overridden by middlewares static configs of ugrpc::client::middlewares::log::Component and ugrpc::server::middlewares::log::Component.
  • Server and client logging tags are now consistent.
  • More improvements, docs and samples for middlewares. See gRPC for more info.
• Build
  • Fixed floating point escaping compilation in ClickHouse driver. Many thanks to Ksenia-C for the PR!
  • Fix compilation errors for curl 8.13. Many thanks to Konstantin Goncharik for the PR!
  • Fix compilation errors for fmt 11. Many thanks to Konstantin Goncharik for the PR!
  • Added USERVER_ENABLE_DEBUG_INFO_COMPRESSION build option, that was later changed to USERVER_DEBUG_INFO_COMPRESSION. Many thanks to Konstantin Goncharik for the PRs! Compression detection algorithm was improved to check the linker compression support.
  • Added Debian-12 dependencies and build instructions.
  • Export only files that are not ignored by git for Conan sources. Many thanks to c0rt for the PR!
• Documentation and Diagnostics:
  • Added Codegen overview, External SQL/YQL files, Coroutine stack documentation.
  • Fixed a typo in MacOS build dependencies. Thanks to Alexey for the PR!
  • Fixed formatting of CancellableSemaphore::GetCapacity(). Thanks to Sergey Prikhodko for the PR!
  • Fixed uncountable amount of issues with Doxygen markup.
  • Structures and parsers for userver dynamic configs are now generated by chaotic from schemas.
  • More docs for utest::HttpServerMock.
  • Reworked Kafka metrics and added docs about them.
  • Added docs and samples for Eval* functions of Redis driver.