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VictoriaMetrics/docs/VictoriaLogs/CHANGELOG.md
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docs/VictoriaLogs/CHANGELOG.md: cut v0.8.0-victorialogs
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---
sort: 7
weight: 7
title: VictoriaLogs changelog
menu:
docs:
identifier: "victorialogs-changelog"
parent: "victorialogs"
weight: 7
title: CHANGELOG
aliases:
- /VictoriaLogs/CHANGELOG.html
---
# VictoriaLogs changelog
The following `tip` changes can be tested by building VictoriaLogs from the latest commit of [VictoriaMetrics](https://github.com/VictoriaMetrics/VictoriaMetrics/) repository
according to [these docs](https://docs.victoriametrics.com/VictoriaLogs/QuickStart.html#building-from-source-code)
## tip
## [v0.9.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.9.0-victorialogs)
Released at 2024-05-22
* FEATURE: allow using `~"some_regexp"` [regexp filter](https://docs.victoriametrics.com/victorialogs/logsql/#regexp-filter) instead of `re("some_regexp")`.
* FEATURE: allow using `="some phrase"` [exact filter](https://docs.victoriametrics.com/victorialogs/logsql/#exact-filter) instead of `exact("some phrase")`.
* FEATURE: allow using `="some prefix"*` [exact prefix filter](https://docs.victoriametrics.com/victorialogs/logsql/#exact-prefix-filter) instead of `exact("some prefix"*)`.
* FEATURE: add ability to generate output fields according to the provided format string. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#format-pipe).
* FEATURE: add ability to extract fields with [`extract` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#extract-pipe) only if the given condition is met. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#conditional-extract).
* FEATURE: add ability to unpack JSON fields with [`unpack_json` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#unpack_json-pipe) only if the given condition is met. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#conditional-unpack_json).
* FEATURE: add ability to unpack [logfmt](https://brandur.org/logfmt) fields with [`unpack_logfmt` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#unpack_logfmt-pipe) only if the given condition is met. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#conditional-unpack_logfmt).
* FEATURE: add [`fields_min`](https://docs.victoriametrics.com/victorialogs/logsql/#fields_min-stats) and [`fields_max`](https://docs.victoriametrics.com/victorialogs/logsql/#fields_max-stats) functions for [`stats` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#stats-pipe), which allow returning all the [log fields](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model) for the log entry with the minimum / maximum value at the given field.
* FEATURE: add `/select/logsql/streams` HTTP endpoint for returning [streams](https://docs.victoriametrics.com/victorialogs/keyconcepts/#stream-fields) from results of the given query. See [these docs](https://docs.victoriametrics.com/victorialogs/querying/#querying-streams) for details.
* FEATURE: add `/select/logsql/stream_label_names` HTTP endpoint for returning [stream](https://docs.victoriametrics.com/victorialogs/keyconcepts/#stream-fields) label names from results of the given query. See [these docs](https://docs.victoriametrics.com/victorialogs/querying/#querying-stream-label-names) for details.
* FEATURE: add `/select/logsql/stream_label_values` HTTP endpoint for returning [stream](https://docs.victoriametrics.com/victorialogs/keyconcepts/#stream-fields) label values for the given label from results of the given query. See [these docs](https://docs.victoriametrics.com/victorialogs/querying/#querying-stream-label-values) for details.
* FEATURE: [web UI](https://docs.victoriametrics.com/VictoriaLogs/querying/#web-ui): change time range limitation from `_time` in the expression to `start` and `end` query args.
* BUGFIX: fix `invalid memory address or nil pointer dereference` panic when using [`extract`](https://docs.victoriametrics.com/victorialogs/logsql/#extract-pipe), [`unpack_json`](https://docs.victoriametrics.com/victorialogs/logsql/#unpack_json-pipe) or [`unpack_logfmt`](https://docs.victoriametrics.com/victorialogs/logsql/#unpack_logfmt-pipe) pipes. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6306).
* BUGFIX: [web UI](https://docs.victoriametrics.com/VictoriaLogs/querying/#web-ui): fix an issue where logs with long `_msg` values might not display. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6281).
* BUGFIX: properly handle time range boundaries with millisecond precision. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6293).
## [v0.8.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.8.0-victorialogs)
Released at 2024-05-20
* FEATURE: add ability to extract JSON fields from [log fields](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model). See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#unpack_json-pipe).
* FEATURE: add ability to extract [logfmt](https://brandur.org/logfmt) fields from [log fields](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model). See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#unpack_logfmt-pipe).
* FEATURE: add ability to extract arbitrary text from [log fields](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model) into the output fields. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#extract-pipe).
* FEATURE: add ability to put arbitrary [queries](https://docs.victoriametrics.com/victorialogs/logsql/#query-syntax) inside [`in()` filter](https://docs.victoriametrics.com/victorialogs/logsql/#multi-exact-filter).
* FEATURE: add support for post-filtering of query results with [`filter` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#filter-pipe).
* FEATURE: allow applying individual [filters](https://docs.victoriametrics.com/victorialogs/logsql/#filters) per each [stats function](https://docs.victoriametrics.com/victorialogs/logsql/#stats-pipe-functions). See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#stats-with-additional-filters).
* FEATURE: allow passing string values to [`min`](https://docs.victoriametrics.com/victorialogs/logsql/#min-stats) and [`max`](https://docs.victoriametrics.com/victorialogs/logsql/#max-stats) functions. Previously only numeric values could be passed to them.
* FEATURE: speed up [`sort ... limit N` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#sort-pipe) for typical cases.
* FEATURE: allow using more convenient syntax for [`range` filters](https://docs.victoriametrics.com/victorialogs/logsql/#range-filter) if upper or lower bound isn't needed. For example, it is possible to write `response_size:>=10KiB` instead of `response_size:range[10KiB, inf)`, or `temperature:<42` instead of `temperature:range(-inf, 42)`.
* FEATURE: add `/select/logsql/hits` HTTP endpoint for returning the number of matching logs per the given time bucket over the selected time range. See [tese docs](https://docs.victoriametrics.com/victorialogs/querying/#querying-hits-stats) for details.
* FEATURE: add `/select/logsql/field_names` HTTP endpoint for returning [field](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model) names from results of the given query. See [these docs](https://docs.victoriametrics.com/victorialogs/querying/#querying-field-names) for details.
* FEATURE: add `/select/logsql/field_values` HTTP endpoint for returning unique values for the given [field](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model) obtained from results of the given query. See [these docs](https://docs.victoriametrics.com/victorialogs/querying/#querying-field-values) for details.
* BUGFIX: properly take into account `offset` at [`sort` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#sort-pipe) when it already has `limit`. For example, `_time:5m | sort by (foo) offset 20 limit 10`.
## [v0.7.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.7.0-victorialogs)
Released at 2024-05-15
* FEATURE: add support for optional `start` and `end` query args to [HTTP querying API](https://docs.victoriametrics.com/victorialogs/querying/#http-api), which can be used for limiting the time range for [LogsQL query](https://docs.victoriametrics.com/victorialogs/logsql/).
* FEATURE: add ability to return the first `N` results from [`sort` pipe](#https://docs.victoriametrics.com/victorialogs/logsql/#sort-pipe). This is useful when `N` biggest or `N` smallest values must be returned from large amounts of logs.
* FEATURE: add [`quantile`](https://docs.victoriametrics.com/victorialogs/logsql/#quantile-stats) and [`median`](https://docs.victoriametrics.com/victorialogs/logsql/#median-stats) [stats functions](https://docs.victoriametrics.com/victorialogs/logsql/#stats-pipe).
## [v0.6.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.6.1-victorialogs)
Released at 2024-05-14
* FEATURE: use [natural sort order](https://en.wikipedia.org/wiki/Natural_sort_order) when sorting logs via [`sort` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#sort-pipe).
* BUGFIX: properly return matching logs in [streams](https://docs.victoriametrics.com/victorialogs/keyconcepts/#stream-fields) with small number of entries. Previously they could be skipped. The issue has been introduced in [the release v0.6.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.6.0-victorialogs).
* BUGFIX: fix `runtime error: index out of range` panic when using [`sort` pipe](https://docs.victoriametrics.com/victorialogs/logsql/#sort-pipe) like `_time:1h | sort by (_time)`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6258).
## [v0.6.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.6.0-victorialogs)
Released at 2024-05-12
* FEATURE: return all the log fields by default in query results. Previously only [`_stream`](https://docs.victoriametrics.com/victorialogs/keyconcepts/#stream-fields), [`_time`](https://docs.victoriametrics.com/victorialogs/keyconcepts/#time-field) and [`_msg`](https://docs.victoriametrics.com/victorialogs/keyconcepts/#message-field) fields were returned by default.
* FEATURE: add support for returning only the requested log [fields](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model). See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#fields-pipe).
* FEATURE: add support for calculating various stats over [log fields](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model). Grouping by arbitrary set of [log fields](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model) is supported. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#stats-pipe) for details.
* FEATURE: add support for sorting the returned results. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#sort-pipe).
* FEATURE: add support for returning unique results. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#uniq-pipe).
* FEATURE: add support for limiting the number of returned results. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#limiters).
* FEATURE: add support for copying and renaming the selected log fields. See [these](https://docs.victoriametrics.com/victorialogs/logsql/#copy-pipe) and [these](https://docs.victoriametrics.com/victorialogs/logsql/#rename-pipe) docs.
* FEATURE: allow using `_` inside numbers. For example, `score:range[1_000, 5_000_000]` for [`range` filter](https://docs.victoriametrics.com/victorialogs/logsql/#range-filter).
* FEATURE: allow numbers in hexadecimal and binary form. For example, `response_size:range[0xff, 0b10001101101]` for [`range` filter](https://docs.victoriametrics.com/victorialogs/logsql/#range-filter).
* FEATURE: allow using duration and byte size suffixes in numeric values inside LogsQL queries. See [these docs](https://docs.victoriametrics.com/victorialogs/logsql/#numeric-values).
* FEATURE: improve data ingestion performance by up to 50%.
* FEATURE: optimize performance for [LogsQL query](https://docs.victoriametrics.com/victorialogs/logsql/), which contains multiple filters for [words](https://docs.victoriametrics.com/victorialogs/logsql/#word-filter) or [phrases](https://docs.victoriametrics.com/victorialogs/logsql/#phrase-filter) delimited with [`AND` operator](https://docs.victoriametrics.com/victorialogs/logsql/#logical-filter). For example, `foo AND bar` query must find [log messages](https://docs.victoriametrics.com/victorialogs/keyconcepts/#message-field) with `foo` and `bar` words at faster speed.
* BUGFIX: prevent from possible corruption of short [log fields](https://docs.victoriametrics.com/victorialogs/keyconcepts/#data-model) during data ingestion.
* BUGFIX: prevent from additional CPU usage for up to a few seconds after canceling the query.
* BUGFIX: prevent from returning log entries with emtpy `_stream` field in the form `"_stream":""` in [search query results](https://docs.victoriametrics.com/victorialogs/querying/). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6042).
## [v0.5.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.5.2-victorialogs)
Released at 2024-04-11
* BUGFIX: properly register new [log streams](https://docs.victoriametrics.com/victorialogs/keyconcepts/#stream-fields) under high data ingestion rate. The issue has been introduced in [v0.5.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.5.0-victorialogs).
## [v0.5.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.5.1-victorialogs)
Released at 2024-04-04
* BUGFIX: properly apply time range filter for queries containing [`OR` operators](https://docs.victoriametrics.com/victorialogs/logsql/#logical-filter). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5920).
* BUGFIX: do not log debug lines `DEBUG: start trimLines` and `DEBUG: end trimLines`. This bug has been introduced in [v0.5.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.5.0-victorialogs) in [this commit](https://github.com/VictoriaMetrics/VictoriaMetrics/commit/0514091948cf8e00e42f44318c0e5e5b63b6388f).
## [v0.5.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.5.0-victorialogs)
Released at 2024-03-01
* FEATURE: support the ability to limit the number of returned log entries from [HTTP querying API](https://docs.victoriametrics.com/victorialogs/querying/#http-api) by passing `limit` query arg. Previously all the matching log entries were returned until closing the response stream. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5674). Thanks to @dmitryk-dk for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5778).
* BUGFIX: do not panic on incorrect regular expression in [stream filter](https://docs.victoriametrics.com/victorialogs/logsql/#stream-filter). Thanks to @XLONG96 for [the bugfix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5897).
* BUGFIX: properly determine when the assisted merge is needed. Previously the logs for determining whether the assisted merge is needed was broken. This could lead to too big number of parts under high data ingestion rate. Thanks to @lujiajing1126 for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5447).
* BUGFIX: properly stop execution of aborted query when the query doesn't contain [`_stream` filter](https://docs.victoriametrics.com/victorialogs/logsql/#stream-filter). Previously such a query could continue consuming resources after being aborted by the client. Thanks to @z-anshun for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5400).
## [v0.4.2](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.4.2-victorialogs)
Released at 2023-11-15
* BUGFIX: properly locate logs for the [requested streams](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#stream-filter). Previously logs for some streams may be missing in query results. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4856). Thanks to @XLONG96 for [the fix](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5295)!
* BUGFIX: [web UI](https://docs.victoriametrics.com/VictoriaLogs/querying/#web-ui): properly sort found logs by time. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5300).
## [v0.4.1](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.4.1-victorialogs)
Released at 2023-10-04
* BUGFIX: fix the free space verification process in VictoriaLogs that was erroneously shifting to read-only mode, despite there being sufficient free space available. See [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5112) issue.
## [v0.4.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.4.0-victorialogs)
Released at 2023-10-03
* FEATURE: add `-elasticsearch.version` command-line flag, which can be used for specifying Elasticsearch version returned by VictoriaLogs to Filebeat at [elasticsearch bulk API](https://docs.victoriametrics.com/VictoriaLogs/data-ingestion/#elasticsearch-bulk-api). This helps resolving [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4777).
* FEATURE: expose the following metrics at [/metrics](https://docs.victoriametrics.com/VictoriaLogs/#monitoring) page:
* `vl_data_size_bytes{type="storage"}` - on-disk size for data excluding [log stream](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) indexes.
* `vl_data_size_bytes{type="indexdb"}` - on-disk size for [log stream](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#stream-fields) indexes.
* FEATURE: add `-insert.maxFieldsPerLine` command-line flag, which can be used for limiting the number of fields per line in logs sent to VictoriaLogs via ingestion protocols. This helps to avoid issues like [this](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4762).
* FEATURE: expose `vl_http_request_duration_seconds` histogram at the [/metrics](https://docs.victoriametrics.com/VictoriaLogs/#monitoring) page. Thanks to @crossoverJie for [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/4934).
* FEATURE: add support of `-storage.minFreeDiskSpaceBytes` command-line flag to allow switching to read-only mode when running out of disk space at `-storageDataPath`. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4737).
* BUGFIX: fix possible panic when no data is written to VictoriaLogs for a long time. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4895). Thanks to @crossoverJie for filing and fixing the issue.
* BUGFIX: add `/insert/loky/ready` endpoint, which is used by Promtail for healthchecks. This should remove `unsupported path requested: /insert/loki/ready` warning logs. See [this comment](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4762#issuecomment-1690966722).
* BUGFIX: prevent from panic during background merge when the number of columns in the resulting block exceeds the maximum allowed number of columns per block. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4762).
## [v0.3.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.3.0-victorialogs)
Released at 2023-07-20
* FEATURE: add support for data ingestion via Promtail (aka default log shipper for Grafana Loki). See [these](https://docs.victoriametrics.com/VictoriaLogs/data-ingestion/Promtail.html) and [these](https://docs.victoriametrics.com/VictoriaLogs/data-ingestion/#loki-json-api) docs.
## [v0.2.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.2.0-victorialogs)
Released at 2023-07-17
* FEATURE: support short form of `_time` filters over the last X minutes/hours/days/etc. For example, `_time:5m` is a short form for `_time:(now-5m, now]`, which matches logs with [timestamps](https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#time-field) for the last 5 minutes. See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#time-filter) for details.
* FEATURE: add ability to specify offset for the selected time range. For example, `_time:5m offset 1h` is equivalent to `_time:(now-5m-1h, now-1h]`. See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#time-filter) for details.
* FEATURE: [LogsQL](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html): replace `exact_prefix("...")` with `exact("..."*)`. This makes it consistent with [i()](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#case-insensitive-filter) filter, which can accept phrases and prefixes, e.g. `i("phrase")` and `i("phrase"*)`. See [these docs](https://docs.victoriametrics.com/VictoriaLogs/LogsQL.html#exact-prefix-filter).
## [v0.1.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v0.1.0-victorialogs)
Released at 2023-06-21
Initial release
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