Release 2.29.0

[timescale-automation]

TimescaleDB Changelog

Please note: When updating your database, you should connect using psql with the -X flag to prevent any .psqlrc commands from accidentally triggering the load of a previous TimescaleDB version.

2.29.0 (2026-07-07)

This release contains performance improvements and bug fixes since the 2.28.2 release. We recommend that you upgrade at the next available opportunity.

Highlighted features in TimescaleDB v2.29.0

• FILL THIS *

Backward-Incompatible Changes

Features

• #10010 Skip classifying compressed relations to speed up planning
• #10041 Remove support for PG15
• #10048 Support concurrent refresh policies on hierarchical continuous aggregates
• #10081 Add samplerate argument to _timescaledb_functions.estimate_uncompressed_size
• #10118 Don't track compressed relations as separate chunk
• #10119 Reduce memory usage of INSERT queries using Direct Compress and spanning multiple chunks
• #10204 Don't create separate hypertable catalog entry for hypertables with compression
• #9534 Speed up expression evaluation in the columnar pipeline by caching common subexpressions
• #9684 Add decompress_batch SQL function
• #9732 Speed up some queries with small LIMIT by switching to row-by-row query execution pipeline
• #9917 Decompress less data in DML on compressed hypertable by accounting for the prepared statement parameters
• #9957 Add compact_chunk function

Bugfixes

• #10013 Make ownership error messages on CAggs consistent
• #10052 Result of min/max aggregate functions in columnar aggregation pipeline possibly inconsistent with plain Postgres result
• #10082 Wrong result when evaluating a function returning NULL in the columnar query execution pipeline
• #10143 Fix division by zero when planning time_bucket with zero width
• #10179 Allow enabling and disabling triggers on hypertables with columnstore enabled
• #10182 Fix columnstore sort pushdown to check for different query sortkey collation
• #10199 Fix initial_start handling in build_job_info
• #10212 Fix race condition when enabling compression on a hypertable
• #10213 Cache sort pathkeys per hypertable

New Settings

GUCs

Thanks

• @MaximeEthon for reporting an issue with prepared statement parameters in DML decompression
• @juantxorena for reporting that triggers could not be enabled or disabled on hypertables with columnstore enabled

[surister]

Too early, will come back 🤖.