| .. Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| .. use this file except in compliance with the License. You may obtain a copy of |
| .. the License at |
| .. |
| .. http://www.apache.org/licenses/LICENSE-2.0 |
| .. |
| .. Unless required by applicable law or agreed to in writing, software |
| .. distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| .. WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| .. License for the specific language governing permissions and limitations under |
| .. the License. |
| |
| .. _release/3.4.x: |
| |
| ============ |
| 3.4.x Branch |
| ============ |
| |
| .. contents:: |
| :depth: 1 |
| :local: |
| |
| .. _release/3.4.0: |
| |
| Version 3.4.0 |
| ============= |
| |
| Highlights |
| ---------- |
| |
| .. code-block:: text |
| |
| .-. |
| / | |
| /\ | .-._.) ( ) .-..-. .-. ) ( |
| / \ |( )( )( / ./.-'_( | ( ) |
| .-' / \| `-' `--': \_/ (__.' `-'-'`--': |
| (__.' `. |
| |
| * :ghissue:`4291`: Introducing Nouveau (beta) a modern, from-the-ground-up |
| implementation of Lucene-based full-text search for CouchDB. Please test |
| this thoroughly and report back any issues you might find. |
| |
| - Installation instructions // TODO LINK |
| - Report a bug // TODO LINK |
| |
| * :ghissue:`4570`, :ghissue:`4578`, :ghissue:`4576`: Adopt xxHash in favour |
| of md5 for ``couch_file`` checksums and ETag calculation. 30% performance |
| increase for large (128K) docs. No difference for smaller docs. |
| |
| * :ghissue:`4814`: Introduce PBKDF2-SHA256 for password hashing. The existing |
| PBKDF2-SHA1 variant is now deprecated. Increases the default iteration count |
| to ``500000``. Also introduce a password hash in-memory cache with a low |
| iteration number, to keep interactive requests fast for a fixed time. |
| |
| Entries in the password hash cache are time-limited, unused entries are |
| automatically deleted, and there is a capacity bound. |
| |
| * :ghissue:`4512`: Mango: add keys-only covering indexes. Improves query |
| response times for certain queries up to 10x at p(95). |
| |
| * :ghissue:`4681`: Introduce optional countermeasures as we run out of |
| disk space. |
| |
| * :ghissue:`4847`: Require auth for ``_replicate`` endpoint. This continues |
| the 3.x closed-by-default design goal. |
| |
| * Many small small performance improvements, see Performance section // TODO LINK |
| |
| Features and Enhancements |
| ------------------------- |
| |
| * :ghissue:`4878`: Add an option to scrub some sensitive headers from external |
| json. |
| * :ghissue:`4834`: Wait for newly set admin creds to be hashed in setup. |
| * :ghissue:`4821`: Do not fail compactions if the last step is delayed |
| by ``ioq``. |
| * :ghissue:`4810`: Mango: add ``$beginsWith`` operator . |
| * :ghissue:`4769`: Improve replicator error handling. |
| * :ghissue:`4766`: Add new HTTP endpoint ``/_node/_local/_smoosh/status``. |
| * :ghissue:`4736`: Stop client process and clean up if client disconnects. |
| * :ghissue:`4703`: Add ``_purged_infos`` endpoint. |
| * :ghissue:`4685`: Add ``"CouchDB-Replicator/..."`` user agent to |
| replicator ``/_session`` requests |
| * :ghissue:`4680`: Shard splitting: allow resumption of failed jobs and |
| make timeout configurable. |
| * :ghissue:`4677`: Crash replication jobs on unexpected ``4xx`` errors. |
| * :ghissue:`4670`: Allow setting of additional ``ibrowse`` options |
| like ``prefer_ipv6``. |
| * :ghissue:`4662`: Mango: extend ``_explain`` with candidate indexes and |
| selector hints. |
| * :ghissue:`4625`: Add optional logging of security issues when |
| replicating. |
| * :ghissue:`4623`: Better upgrade handling of ``instance_start_time`` |
| in replicator. |
| * :ghissue:`4613`: Add option to suppress version info via HTTP header. |
| * :ghissue:`4601`: Add simple ``fabric`` benchmark. |
| * :ghissue:`4581`: Support Erlang/OTP 26. |
| * :ghissue:`4575`: Add ``{verify, verify_peer}`` for TLS validation. |
| * :ghissue:`4569`: Mango: add ``keys_examined`` for ``execution_stats``. |
| * :ghissue:`4558`: Make Erlang/OTP 24 the minimum supported Erlang version. |
| * :ghissue:`4503`: Make timeouts for ``_view`` and ``_search`` configurable. |
| * :ghissue:`4483`: Add RFC5424 compliant report logging. |
| * :ghissue:`4475`: Add type and descriptions to prometheus output. |
| * :ghissue:`4443`: Automatically enable FIPS mode at runtime. |
| * :ghissue:`4438`: Upgrade hash algorithm for proxy auth. |
| * :ghissue:`4432`: Hide shard-sync and purge documents from ``_local_docs``. |
| * :ghissue:`4431`: Allow definition of JWT roles claim as comma-separated |
| list. |
| * :ghissue:`4404`: Respond with 503 immediately if search not available. |
| * :ghissue:`4347`: Remove failed ``couch_plugins`` experiment. |
| |
| Performance |
| ----------- |
| |
| * :ghissue:`4852`: Optimise ``_active_tasks``. |
| * :ghissue:`4811`: Prevent delayed opener error from crashing index servers. |
| * :ghissue:`4786`, :ghissue:`4789`: Add extra timing stats for ``couch_js`` |
| engine commands. |
| * :ghissue:`4679`: Fix multipart parse “attachment longer than expected” |
| error. |
| * :ghissue:`4672`: Remove ``folsom`` and reimplement required functionality |
| with new Erlang/OTP primitives resulting in up to 19x faster histogram |
| operations. |
| * :ghissue:`4617`: Use a faster sets implementation available since OTP 24. |
| * :ghissue:`4608`: Add metrics for fsync calls and query engine operations. |
| * :ghissue:`4604`: 6x speedup for common ``mem3:dbname/1`` function. |
| * :ghissue:`4603`: Update ``vm.args`` settings, increased Erlang distribution |
| buffer size to 32MB. |
| * :ghissue:`4598`: Speed up internal replicator. |
| * :ghissue:`4507`, :ghissue:`4525`: Add more prometheus metrics. |
| * :ghissue:`4505`: Treat JavaScript internal errors as fatal. |
| * :ghissue:`4503`: Add ``error_info`` clause for ``410 Gone``. |
| * :ghissue:`4494`: Treat single-element keys as key. |
| * :ghissue:`4473`: Avoid re-compiling filter view functions. |
| * :ghissue:`4401`: Enforce doc ids ``_changes`` filter optimisation limit and |
| raise it from ``100`` to ``1000``. |
| * :ghissue:`4394`: Mango: push ``fields`` selection down to data nodes. |
| |
| Bugfixes |
| -------- |
| |
| * :ghissue:`4887`: Look up search node name in config for weatherreport. |
| * :ghissue:`4837`: Fix update bug in ``ets_lru``. |
| * :ghissue:`4794`: Fix incorrect raising of ``database_does_not_exist`` error. |
| * :ghissue:`4784`: Fix parsing of node name from ``ERL_FLAGS1`` |
| in ``remsh``. |
| * :ghissue:`4782`, :ghissue:`4891`: Mango: prevent occasional |
| duplication of paginated text results. |
| * :ghissue:`4761`: Fix badrecord error when replicator is logging http usage. |
| * :ghissue:`4759`: TLS: use HTTP rules for hostname verification. |
| * :ghissue:`4758`: Remove sensitive headers from the mochiweb request in pdict. |
| * :ghissue:`4751`: Mango: correct behaviour of ``fields`` on ``_explain``. |
| * :ghissue:`4722`: Fix badmatch error when purge requests time out. |
| * :ghissue:`4716`: Fix pending count for reverse changes feed. |
| * :ghissue:`4709`: Mango: improve handling of invalid fields. |
| * :ghissue:`4704`, :ghissue:`4707`: Fix empty facet search results. |
| * :ghissue:`4682`: ``_design_doc/queries`` with ``keys`` should only return |
| design docs. |
| * :ghissue:`4669`: Allow for more than two replicator socket options. |
| * :ghissue:`4666`: Improve error handling in config API. |
| * :ghissue:`4659`: Mango: remove duplicates from ``indexable_fields/1`` |
| results. |
| * :ghissue:`4658`: Fix undefined range in ``mem3_rep`` purge replication |
| logic. |
| * :ghissue:`4653`: Fix ability to use ``;`` inside of config values. |
| * :ghissue:`4629`: Fix prometheus to survive ``mem3_sync`` termination. |
| * :ghissue:`4626`: Fix purge infos replicating to the wrong shards |
| during shard splitting. |
| * :ghissue:`4602`: Fix error handling for the ``_index`` endpoint and |
| document ``_index/_bulk_delete``. |
| * :ghissue:`4555`: Fix race condition when creating indexes. |
| * :ghissue:`4524`: Querying ``_all_docs`` with non-string key should |
| return an empty list. |
| * :ghissue:`4514`: GET invalid path under ``_index`` should not cause |
| 500 response. |
| * :ghissue:`4509`: Make ``remsh`` work with quoted cookie. |
| * :ghissue:`4491`: Fix ``couch_index`` to avoid crashes under certain |
| conditions. |
| * :ghissue:`4485`: Catch and log any error from ``mem3:local_shards`` in |
| ``index_server``. |
| * :ghissue:`4473`: Fix prometheus counter metric naming. |
| * :ghissue:`4458`: Mango: Fix text index selection for queries with ``$regex``. |
| * :ghissue:`4416`: Allow ``_local`` doc writes to the replicator dbs. |
| * :ghissue:`4370`: Ensure design docs are uploaded individually when |
| replicating with ``bulk_get``. |
| * :ghissue:`4363`: Fix replication ``_scheduler/docs`` ``total_rows``. |
| * :ghissue:`4360`: Fix handling forbidden exceptions from workers in |
| ``fabric_doc_update``. |
| * :ghissue:`4353`: Fix replication ``job_link``. |
| * :ghissue:`4348`: Fix undefined function warning in weatherreport. |
| * :ghissue:`4343`: Fix undef when parsing replication doc body. |
| |
| Tests |
| ----- |
| |
| * :ghissue:`4873`: Fix test for `text` index creation. |
| * :ghissue:`4863`: Fix flaky ``users_db_security`` test. |
| * :ghissue:`4808`: Fix flaky ``couch_stream`` test. |
| * :ghissue:`4806`: Mango: do not skip json tests when Clouseau installed. |
| * :ghissue:`4803`: Fix flaky ``ddoc_cache`` test some more. |
| * :ghissue:`4765`: Fix flaky mem3 reshard test. |
| * :ghissue:`4763`: Plug hole in unit test coverage of view curser functions. |
| * :ghissue:`4726`: Support Elixir 1.15. |
| * :ghissue:`4691`: ``make elixir`` should match what we run in CI. |
| * :ghissue:`4632`: Fix test database recreation logic. |
| * :ghissue:`4630`: Add extra assert in flaky couch_file test. |
| * :ghissue:`4620`: Add Erlang/OTP 26 to Pull Request CI matrix. |
| * :ghissue:`4552`, :ghissue:`4553`: Fix flaky couchjs error test. |
| * :ghissue:`4453`: Fix flaky LRU test that the new super fast macOS CI worker |
| noticed. |
| * :ghissue:`4422`: Clean up JSON index selection and add unit tests. |
| * :ghissue:`4345`: Add test coverage for replicator ``user_ctx`` parser. |
| |
| Docs |
| ---- |
| |
| * :ghissue:`4774`: Amend description of ``use_index`` on ``/{db}/_find``. |
| * :ghissue:`4743`: Ban the laster monster. |
| * :ghissue:`4684`: Add ``_design_docs/queries`` and |
| ``_local_docs/queries``. |
| * :ghissue:`4645`: Add authentication data to examples. |
| * :ghissue:`4636`: Clarify default quorum calculation. |
| * :ghissue:`4561`: Clarify encoding length in performance section. |
| * :ghissue:`4402`: Fix example code in partitioned databases. |
| * :ghissue:`4379`: match description of ``$mod`` with reality. |
| |
| Builds |
| ------ |
| * :ghissue:`4840`: Add Debian 12 (bookworm) to CI and binary packages. |
| |
| Other |
| ----- |
| |
| What’s new, Scooby-Doo? |
