v3.13.0

• Refactored Connection interface
• Removed CustomOption and taking client with custom options
• Removed proxy package
• Improved db.With() helper for child connections creation
• Set shared conn.Pool for all children ydb.Connection
• Fixed bug with RoundRobin and RandomChoice balancers Create()

v3.12.1

• Added trace.Driver.OnConnPark event
• Added trace.Driver.OnConnClose event
• Fixed bug with closing nil session in table retryer
• Restored repeater Force call on pessimize event
• Changed mutex type in conn.Conn from sync.Mutex to sync.RWMutex for exclude deadlocks
• Reverted applying empty discovery results to cluster

v3.12.0

• Added balancers.Prefer and balancers.PreferWithFallback constructors

v3.11.13

• Added trace.Driver.OnRepeaterWakeUp event
• Refactored package repeater

v3.11.12

• Added trace.ClusterInsertDoneInfo.Inserted boolean flag for notify about success of insert endpoint into balancer
• Added trace.ClusterRemoveDoneInfo.Removed boolean flag for notify about success of remove endpoint from balancer

v3.11.11

• Reverted usage of math/rand (instead crypto/rand)

v3.11.10

• Imported tool gtrace to ./cmd/gtrace
• Changed minimal version of go from 1.13 to 1.14

v3.11.9

• Fixed composing of service traces
• Fixed end-call of trace.Driver.OnConnStateChange

v3.11.8

• Added trace.EndpointInfo.LastUpdated() timestamp
• Refactored endpoint.Endpoint (split to struct endopint and interface Endpoint)
• Returned safe-thread copy of endpoint.Endpoint to trace callbacks
• Added endpoint.Endpoint.Touch() func for refresh endpoint info
• Added conn.conn.onClose slice for call optional funcs on close step
• Added removing conn.Conn from conn.Pool on conn.Conn.Close() call
• Checked cluster close/empty on keeper goroutine
• Fixed internal.errors.New wrapping depth
• Added context flag for no wrapping operation results as error
• Refactored trace.Driver conn events
• Removed internal alias-type errors.IssuesIterator
• Changed trace.GetCredentialsDoneInfo token representation from bool to string
• Added log.Secret helper for mask token
• Replaced meta in proxyConnection.Invoke and proxyConnection.NewStream
• Refactored internal/cluster.Cluster (add option for notify about external lock, lock cluster for update cluster endpoints)
• Reverted grpc.ClientConnInterface API to ydb.Connection
• Replaced in table/types/compare_test.go checking error by error message to checking with errors.Is()
• Added ydb.WithTLSSInsecureSkipVerify() option
• Added trace.Table.OnPoolStateChange event
• Wrapped internal errors with print <func, file, line>
• Removed trace.Table.OnPoolTake event (unused)
• Refactored trace.Details matching by string pattern
• Added resolver trace callback
• Refactored initialization step of grpc dial options
• Added internal package net with net.Conn proxy object
• Fixed closing proxy clients
• Added ydb.Connection.With(opts ...ydb.CustomOption) for taking proxy ydb.Connection with some redefined options
• Added ydb.MetaRequestType and ydb.MetaTraceID aliases to internal meta package constants
• Added ydb.WithCustomCredentials() option
• Refactored ydb.Ratelimiter().AcquireResource() method (added options for defining type of acquire request)
• Removed single point to define operation mode params (each grpc-call with OperationParams must explicit define OperationParams)
• Removed defining operation params over context
• Removed config.RequestTimeout and config.StreamTimeout (each grpc-call must manage context instead define config.RequestTimeout or config.StreamTimeout)
• Added internal OperationTimeout and OperationCancelAfter to each client (ratelimiter, coordination, table, scheme, scripting, discovery) config. OperationTimeout and OperationCancelAfter config params defined from root config

v3.10.0

• Extended trace.Details constants for support per-service events
• Added trace.Discovery struct for traces discovery events
• Added trace.Ratelimiter, trace.Coordination, trace.Scripting, trace.Scheme stubs (will be implements in the future)
• Added ratelimiter/config, coordination/config, scripting/config, scheme/config, discovery/config packages for specify per-service configs
• Removed trace.Driver.OnDiscovery callback (moved to trace.Discovery)
• Refactored initialization step (firstly makes discovery client)
• Removed internal/lazy.Discovery (discovery client always initialized)
• Fixed trace.Table event structs
• Refactored grpc options for define dns-balancing configuration
• Refactored retry.Retry signature (added retry.WithID, retry.WithTrace and retry.WithIdempotent opt-in args, required param isIdempotentOperation removed)
• Refactored package internal/repeater