From aee2ea471300106ed064b3cd6b64cecf15fcbf5f Mon Sep 17 00:00:00 2001 From: Kemal Akkoyun Date: Tue, 31 Jan 2023 13:57:16 +0100 Subject: [PATCH] Update changelog for 2.42 (#11909) * Update changelog Signed-off-by: Kemal Akkoyun * Reorder entries Signed-off-by: Kemal Akkoyun --------- Signed-off-by: Kemal Akkoyun --- CHANGELOG.md | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index a4537b644..5ab010054 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -2,15 +2,24 @@ ## 2.42.0-rc.0 / 2023-01-26 +This release comes with a bunch of feature coverage for native histograms and breaking changes. + +If you are trying native histograms already, we recommend you remove the `wal` directory when upgrading. +Because the old WAL record for native histograms is not backward compatible in v2.42.0, this will lead to some data loss for the latest data. + +Additionally, if you scrape "float histograms" or use recording rules on native histograms in v2.42.0 (which writes float histograms), +it is a one-way street since older versions do not support float histograms. + +* [CHANGE] **breaking** TSDB: Changed WAL record format for the experimental native histograms. #11783 * [FEATURE] Add 'keep_firing_for' field to alerting rules. #11827 * [FEATURE] Promtool: Add support of selecting timeseries for TSDB dump. #11872 * [ENHANCEMENT] Agent: Native histogram support. #11842 -* [ENHANCEMENT] Histograms: Return actually useful counter reset hints. #11864 +* [ENHANCEMENT] Rules: Support native histograms in recording rules. #11838 * [ENHANCEMENT] SD: Add container ID as a meta label for pod targets for Kubernetes. #11844 * [ENHANCEMENT] SD: Add VM size label to azure service discovery. #11650 * [ENHANCEMENT] Support native histograms in federation. #11830 -* [ENHANCEMENT] TSDB: Add gauge histogram support. #11783 #11840 -* [ENHANCEMENT] TSDB: Support FloatHistogram. #11522 #11817 +* [ENHANCEMENT] TSDB: Add gauge histogram support. #11783 #11840 #11814 +* [ENHANCEMENT] TSDB/Scrape: Support FloatHistogram that represents buckets as float64 values. #11522 #11817 #11716 * [ENHANCEMENT] UI: Show individual scrape pools on /targets page. #11142 ## 2.41.0 / 2022-12-20