# NATS v2.14.6-RC.2 — Release v2.14.6-RC.2

- Product: NATS (https://whatsnew.fyi/product/nats)
- Vendor: Synadia
- Date: 2026-08-26
- Version: v2.14.6-RC.2
- Original notes: https://github.com/nats-io/nats-server/releases/tag/v2.14.6-RC.2
- Permalink: https://whatsnew.fyi/product/nats/releases/v2.14.6-rc.2
- Labels: Pre-release

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **changed** — Reduced the number of heap escapes in subject tree matching
- **fixed** — Fixed a signalling issue that could stall Raft catchups
- **fixed** — The pending append entry cache in-memory is now bounded by size as well as entry count
- **fixed** — Fixed an issue where a stale snapshot from a previous Raft group could be replayed if the group name was unchanged
- **fixed** — Consumer delivery counts will no longer underflow below zero

##### Changelog

Refer to the [2.14 Upgrade Guide](https://docs.nats.io/release-notes/whats_new/whats_new_214) for backwards compatibility notes with 2.12.x. Please note that the 2.13.x version was skipped.

###### Go Version

- 1.26.7

###### Improved

JetStream

- Reduced the number of heap escapes in subject tree matching (#8526)

###### Fixed

JetStream

- Fixed a signalling issue that could stall Raft catchups (#8501)
- The pending append entry cache in-memory is now bounded by size as well as entry count (#8501)
- Fixed an issue where a stale snapshot from a previous Raft group could be replayed if the group name was unchanged (#8501)
- Consumer delivery counts will no longer underflow below zero (#8512, contributed by @no-hup)

###### Complete Changes
 
https://github.com/nats-io/nats-server/compare/v2.14.6-RC.1...v2.14.6-RC.2