prometheus/CHANGELOG.md

0.8.0 / 2014-09-04

• [ENHANCEMENT] Stagger scrapes to spread out load.
• [BUGFIX] Correctly quote HTTP Accept header.

0.7.0 / 2014-08-06

• [FEATURE] Added new functions: abs(), topk(), bottomk(), drop_common_labels().
• [FEATURE] Let console templates get graph links from expressions.
• [FEATURE] Allow console templates to dynamically include other templates.
• [FEATURE] Template consoles now have access to their URL.
• [BUGFIX] Fixed time() function to return evaluation time, not wallclock time.
• [BUGFIX] Fixed HTTP connection leak when targets returned a non-200 status.
• [BUGFIX] Fixed link to console templates in UI.
• [PERFORMANCE] Removed extra memory copies while scraping targets.
• [ENHANCEMENT] Switched from Go 1.2.1 to Go 1.3.
• [ENHANCEMENT] Made metrics exported by Prometheus itself more consistent.
• [ENHANCEMENT] Removed incremental backoffs for unhealthy targets.
• [ENHANCEMENT] Dockerfile also builds Prometheus support tools now.

0.6.0 / 2014-06-30

• [FEATURE] Added console and alert templates support, along with various template functions.
• [PERFORMANCE] Much faster and more memory-efficient flushing to disk.
• [ENHANCEMENT] Query results are now only logged when debugging.
• [ENHANCEMENT] Upgraded to new Prometheus client library for exposing metrics.
• [BUGFIX] Samples are now kept in memory until fully flushed to disk.
• [BUGFIX] Non-200 target scrapes are now treated as an error.
• [BUGFIX] Added installation step for missing dependency to Dockerfile.
• [BUGFIX] Removed broken and unused "User Dashboard" link.

0.5.0 / 2014-05-28

• [BUGFIX] Fixed next retrieval time display on status page.
• [BUGFIX] Updated some variable references in tools subdir.
• [FEATURE] Added support for scraping metrics via the new text format.
• [PERFORMANCE] Improved label matcher performance.
• [PERFORMANCE] Removed JSON indentation in query API, leading to smaller response sizes.
• [ENHANCEMENT] Added internal check to verify temporal order of streams.
• [ENHANCEMENT] Some internal refactorings.

0.4.0 / 2014-04-17

• [FEATURE] Vectors and scalars may now be reversed in binary operations (<scalar> <binop> <vector>).
• [FEATURE] It's possible to shutdown Prometheus via a /-/quit web endpoint now.
• [BUGFIX] Fix for a deadlock race condition in the memory storage.
• [BUGFIX] Mac OS X build fixed.
• [BUGFIX] Built from Go 1.2.1, which has internal fixes to race conditions in garbage collection handling.
• [ENHANCEMENT] Internal storage interface refactoring that allows building e.g. the rule_checker tool without LevelDB dynamic library dependencies.
• [ENHANCEMENT] Cleanups around shutdown handling.
• [PERFORMANCE] Preparations for better memory reuse during marshalling / unmarshalling.