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Change Log

1.4.2 (Sep 2026)

Full Changelog

Notable Changes:

  • R2DBC-128 Add maxAllowedPacket connection option, limiting both the packet size the driver sends and the size it accepts from the server (report by fg0x0)
  • R2DBC-125 Add Infer static analysis to CI

Bugs Fixed:

  • R2DBC-127 Reject multipart (>16 MB) packets before authentication to prevent pre-auth OOM from a rogue server (report by fg0x0)
  • R2DBC-129 Bound the server-given parsec PBKDF2 iteration factor by connectTimeout, and derive keys off the event loop (report by fg0x0)
  • R2DBC-131 Close the connection when the server sends a message while no command is in flight, instead of delivering it to an unrelated command (report by fg0x0)

1.4.1 (Jun 2026)

Full Changelog

Notable Changes:

  • R2DBC-116 Add GraalVM native-image configuration and CI coverage
  • Update dependencies (Project Reactor 2025.0.6, Netty 4.2.15.Final)

Bugs Fixed:

  • R2DBC-115 Clear-text authentication plugins (PAM, mysql_clear_password) must require a secure connection (report by fg0x0)
  • R2DBC-117 Cap BigDecimal/BigInteger string parsing length to prevent CPU exhaustion if MitM (report by tonghuaroot)
  • R2DBC-119 Fail closed when a classpath: SSL certificate is missing
  • R2DBC-120 Stored-procedure CALL detection wrongly matched any query containing "call" (thanks to yunhobb)
  • R2DBC-121 caching_sha2_password/sha256_password login fails with passwords of 20 characters or more (report by 4UjwXc)
  • R2DBC-124 Ensure a non-UTF8 charset cannot be used for protocol exchanges (report by fg0x0)
  • R2DBC-122 Fix SQL parser to correctly handle '--' in expressions
  • R2DBC-123 Pin Locale.ROOT on locale-sensitive wire-format codec sites (thanks to jmestwa-coder)

1.4.0 (Feb 2026)

Notable Changes:

  • R2DBC-109 Add fallbackToSystemTrustStore and fallbackToSystemKeyStore options
  • R2DBC-110 Support java.time.Instant parameters
  • R2DBC-114 Implement Wrapped interface to expose EventLoop scheduler for r2dbc-pool optimization

Bugs Fixed:

  • R2DBC-108 Handle authentication plugin multi-exchange prefix (0x01) introduced in MDEV-37554
  • R2DBC-111 Potential hang when upstream subscription is cancelled before demand
  • R2DBC-112 Failed authentication when using caching_sha2_password with passwords longer than 18 characters
  • R2DBC-113 Add support for RSA public key content in cachingRsaPublicKey and rsaPublicKey options

1.3.0 (Oct 2024)

Notable Changes:

1.2.2 (Sep 2024)

Notable Changes:

  • R2DBC-105 Permit avoiding session setting with new option skipPostCommands

Bugs Fixed:

  • R2DBC-104 Redirection might result in connection error

1.2.1 (19 Jun 2024)

Full Changelog

Notable Changes:

  • R2DBC-96 Missing UUID support

Bugs Fixed:

  • R2DBC-97 NPE if No HaMode provided
  • R2DBC-98 correcting possible bug connecting if project contain a project.properties file
  • R2DBC-99 No encoding set for ByteBuffer parameter
  • R2DBC-101 Wrong default return type for MySQL JSON fields
  • R2DBC-102 avoid netty unneeded dependencies

1.2.0 (08 Feb 2024)

Full Changelog

Notable Changes:

  • R2DBC-93 new timezone option
  • R2DBC-66 add support for connection redirection

Bugs Fixed:

  • R2DBC-92 Properly end connection (in place of RST TCP packet)
  • R2DBC-86 Failover High availability mode "r2dbc:mariadb:[sequential|loadbalancing]://..." wrongly parsed
  • R2DBC-87 Compatibility with mariadb 11.1.1
  • R2DBC-88 java 8 compatibility regression
  • R2DBC-91 ensure respecting server collation
  • R2DBC-94 session tracking wrong implementation when multiple system variable changes

1.1.4 (16 Mar 2023)

Full Changelog

Bugs Fixed:

  • [R2DBC-76] Wrong MEDIUM field binary decoding
  • [R2DBC-77] Metadata is null when using returnGeneratedValues on server before 10.5
  • [R2DBC-79] Wrong client side parsing for named parameter when using user variable
  • [R2DBC-80] add option to disable hostname verification for SslMode.TUNNEL. thanks to @shubha-rajan
  • [R2DBC-81] missing parsing/builder variables for option restrictedAuth,rsaPublicKey,cachingRsaPublicKey and allowPublicKeyRetrievalString
  • [R2DBC-82] wrong transactionIsolation level set/get with server without session tracking
  • [R2DBC-85] adding hint in order to execute text command when useServerPrepStmts option is set
  • [R2DBC-83] support xpand 0000-00-00 timestamp/date encoding

1.1.3 (22 Dec 2022)

Full Changelog

Notable Changes:

  • [R2DBC-67] set SPEC version support to 1.0.0-release version
  • [R2DBC-69] Add SSL tunnel mode * New sslMode option “tunnel” to permit to use pre-existing SSL tunnel * New option sslContextBuilderCustomizer to permit customizing SSL context Builder
  • [R2DBC-74] Use default netty hostname verifier in place of custom one

Bugs Fixed:

  • [R2DBC-68] subscriber cancellation before response end might stall connection #45
  • [R2DBC-65] IllegalReferenceCountException exception in TextRowDecoder #24
  • [R2DBC-70] SSL host name verification don't properly close socket when failing
  • [R2DBC-71] ensuring proper closing of socket, when error occurs
  • [R2DBC-73] pipelining PREPARE + EXECUTE might result in buffer leak when prepare fails
  • [R2DBC-72] Encoded statement parameter buffer might not be released until garbage
  • [R2DBC-75] failover redo buffer race condition not releasing before garbage

1.1.2 (12 Mai 2022)

Full Changelog

  • [R2DBC-54] Support r2dbc spec 0.9.1 version
  • [R2DBC-42] Specification precision on Statement::add
  • [R2DBC-44] simplify client side prepared statement
  • [R2DBC-45] Implement SPI TestKit to validate driver with spec tests
  • [R2DBC-46] Add sql to R2DBC exception hierarchy
  • [R2DBC-47] ensure driver follow spec precision about Row.get returning error.
  • [R2DBC-48] after spec batch clarification trailing batch should fail
  • [R2DBC-49] Support for failover and load balancing modes
  • [R2DBC-50] TIME data without indication default to return Duration in place of LocalTime
  • [R2DBC-56] Transaction isolation spec precision
  • [R2DBC-57] varbinary data default must return byte[]
  • [R2DBC-63] backpressure handling
  • [R2DBC-64] Support batch cancellation
  • [R2DBC-53] correct RowMetadata case-sensitivity lookup
  • [R2DBC-62] Prepared statement wrong column type on prepare meta not skipped

1.1.1-rc (13 Sept 2021)

Full Changelog

Changes:

  • [R2DBC-37] Full java 9 JPMS module
  • [R2DBC-38] Permit sharing channels with option loopResources

Corrections:

  • [R2DBC-40] netty buffer leaks when not consuming results
  • [R2DBC-39] MariadbResult.getRowsUpdated() fails with ClassCastException for RETURNING command

1.0.3 (13 Sept 2021)

Full Changelog

Corrections:

  • [R2DBC-40] netty buffer leaks when not consuming results
  • [R2DBC-39] MariadbResult.getRowsUpdated() fails with ClassCastException for RETURNING command

1.1.0-beta (15 Jul 2021)

Full Changelog

Changes:

  • [R2DBC-10] - support 10.6 new feature metadata skip
  • [R2DBC-21] - Failover capabilities for Connector/R2DBC
  • [R2DBC-23] - Restrict authentication plugin list by option (new option restrictedAuth)
  • support SPI 0.9 M2 * [R2DBC-32] - Add support for improved bind parameter declarations * [R2DBC-33] - Add Connection.beginTransaction(TransactionDefinition) * [R2DBC-34] - implement NoSuchOptionException * [R2DBC-35] - Refinement of RowMetadata * [R2DBC-36] - Implement statement timeout

1.0.2 (02 Jul 2021)

Full Changelog

Corrections:

  • [R2DBC-24] columns of type Bit(1)/TINYINT(1) now convert as Boolean (new option tinyInt1isBit)
  • [R2DBC-25] Statement::add correction after specification precision
  • [R2DBC-26] handle error like 'too many connection" on socket creation
  • [R2DBC-27] Options not parsed from connection string
  • [R2DBC-28] mutual authentication not done when using ssl TRUST option
  • [R2DBC-29] improve coverage to reaching 90%
  • [R2DBC-30] Native Password plugin error

1.0.1 (09 Mar 2021)

Full Changelog

Changes:

  • [R2DBC-16] Ensure connection autocommit initialisation and new option autocommit

Corrections:

  • [R2DBC-17] Transactions in query flux might not be persisted
  • [R2DBC-19] Data bigger than 16Mb correction.

1.0.0 (08 Dec 2020)

Full Changelog

First GA release.

Corrections:

  • [R2DBC-14] correcting backpressure handling #7
  • [R2DBC-12] Ensure retaining blob buffer #6
  • [R2DBC-11] Batching on statement use parameters not added #8
  • Rely on 0.8.3 specification (was 0.8.2)
  • bump dependencies
  • Ensuring row buffer reading position

0.8.4 (29 Sep 2020)

Full Changelog

First Release Candidate release.

Changes compared to 0.8.3.beta1: [R2DBC-9] Non pipelining prepare is close 2 time when race condition cache [R2DBC-8] synchronous close [R2DBC-7] authentication error when using multiple classloader [R2DBC-6] socket option configuration addition for socket Timeout, keep alive and force RST

0.8.3 (23 Jul 2020)

Full Changelog

First Beta release.

This version had a strong focus on testing coverage (40%->85%).

Changes compared to 0.8.2.alpha1:

  • Corrections and optimisations
  • new option pamOtherPwd to permit PAM authentication with multiple steps.
  • Rely on 0.8.2 specification (was 0.8.1)

0.8.2 (08 May 2020)

Full Changelog second Alpha release

0.8.1 (23 Mar. 2020)

First Alpha release