update wiki pages

CHANGELOG.md

@@ -29,8 +29,11 @@ The sandbox cluster installation is running under the constant load generated by
 ## tip
 
 * FEATURE: [Single-node VictoriaMetrics](https://docs.victoriametrics.com/) and `vmstorage` in [VictoriaMetrics cluster](https://docs.victoriametrics.com/cluster-victoriametrics/): expose `vm_last_partition_parts` [metrics](https://docs.victoriametrics.com/#monitoring), which show the number of [parts in the latest partition](https://docs.victoriametrics.com/#storage). These metrics may help debugging query performance slowdown related to the increased number of parts in the last partition, since usually all the ingested data is written to the last partition and all the queries are performed over the recently ingested data, e.g. the last partition.
-* FEATURE: [vmctl](https://docs.victoriametrics.com/vmctl.html): support client-side TLS configuration for [InfluxDB](https://docs.victoriametrics.com/vmctl/#migrating-data-from-influxdb-1x). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5748). Thanks to @khushijain21 [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5783).
+* FEATURE: [vmctl](https://docs.victoriametrics.com/vmctl.html): support client-side TLS configuration for [InfluxDB](https://docs.victoriametrics.com/vmctl/#migrating-data-from-influxdb-1x). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5748). Thanks to @khushijain21 for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5783).
-* FEATURE: [vmctl](https://docs.victoriametrics.com/vmctl.html): support client-side TLS configuration for [Remote Read protocol](https://docs.victoriametrics.com/vmctl/#migrating-data-by-remote-read-protocol). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5748). Thanks to @khushijain21 [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5798).
+* FEATURE: [vmctl](https://docs.victoriametrics.com/vmctl.html): support client-side TLS configuration for [Remote Read protocol](https://docs.victoriametrics.com/vmctl/#migrating-data-by-remote-read-protocol). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5748). Thanks to @khushijain21 for [the pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5798).
+
+* BUGFIX: fix the misleading error `0ms is out of allowed range [0 ...` when passing `step=0` to [/api/v1/query](https://docs.victoriametrics.com/keyconcepts/#instant-query)
+  or [/api/v1/query_range](https://docs.victoriametrics.com/keyconcepts/#range-query). See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5795).
 
 ## [v1.98.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.98.0)
 

LTS-releases.md

@@ -0,0 +1,27 @@
+---
+sort: 300
+weight: 300
+title: Long-term support releases
+menu:
+  docs:
+    parent: 'victoriametrics'
+    weight: 300
+aliases:
+- /LTS-releases.html
+---
+
+# Long-term support releases
+
+[Enterprise version of VictoriaMetrics](https://docs.victoriametrics.com/enterprise/) provides long-term support lines of releases (aka LTS releases).
+Every LTS line receives bugfixes and [security fixes](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/SECURITY.md) for 12 months after
+the initial release. New LTS lines are published every 6 months, so the latest two LTS lines are supported at any given moment. This gives 6 up to months
+for the migration to new LTS lines for [VictoriaMetrics Enterprise](https://docs.victoriametrics.com/enterprise/) users.
+
+All the bugfixes and security fixes, which are included in LTS releases, are also available in [the latest release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest),
+so non-enterprise users are advised to regularly [upgrade](https://docs.victoriametrics.com/#how-to-upgrade-victoriametrics) VictoriaMetrics products
+to [the latest available releases](https://docs.victoriametrics.com/CHANGELOG.html).
+
+## Currently supported LTS release lines
+
+- 1.97.x (the latest one is [v1.97.2 LTS release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.2))
+- 1.93.x (the latest one is [v1.93.12 LTS release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.93.12))

README.md

@@ -21,24 +21,27 @@ VictoriaMetrics is available in [binary releases](https://github.com/VictoriaMet
 [Docker images](https://hub.docker.com/r/victoriametrics/victoria-metrics/), [Snap packages](https://snapcraft.io/victoriametrics)
 and [source code](https://github.com/VictoriaMetrics/VictoriaMetrics). 
 
-The cluster version of VictoriaMetrics is available [here](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
+Documentation for the cluster version of VictoriaMetrics is available [here](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
 
 Learn more about [key concepts](https://docs.victoriametrics.com/keyConcepts.html) of VictoriaMetrics and follow the 
 [quick start guide](https://docs.victoriametrics.com/Quick-Start.html) for a better experience.
 
-There is also a user-friendly database for logs - [VictoriaLogs](https://docs.victoriametrics.com/VictoriaLogs/).
-
 If you have questions about VictoriaMetrics, then feel free asking them in the [VictoriaMetrics community Slack chat](https://slack.victoriametrics.com/).
 
-[Contact us](mailto:info@victoriametrics.com) if you need enterprise support for VictoriaMetrics. 
+[Contact us](mailto:info@victoriametrics.com) if you need enterprise support for VictoriaMetrics.
 See [features available in enterprise package](https://docs.victoriametrics.com/enterprise.html).
-Enterprise binaries can be downloaded and evaluated for free 
+Enterprise binaries can be downloaded and evaluated for free
 from [the releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
 You can also [request a free trial license](https://victoriametrics.com/products/enterprise/trial/).
 
-VictoriaMetrics is developed at a fast pace, so it is recommended to check the [CHANGELOG](https://docs.victoriametrics.com/CHANGELOG.html) periodically, and to perform [regular upgrades](#how-to-upgrade-victoriametrics).
+VictoriaMetrics is developed at a fast pace, so it is recommended to check the [CHANGELOG](https://docs.victoriametrics.com/CHANGELOG.html) periodically,
+and to perform [regular upgrades](#how-to-upgrade-victoriametrics).
 
-VictoriaMetrics has achieved security certifications for Database Software Development and Software-Based Monitoring Services. We apply strict security measures in everything we do. See our [Security page](https://victoriametrics.com/security/) for more details.
+[VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise/) provides long-term support lines of releases (LTS releases) -
+see [these docs](https://docs.victoriametrics.com/LTS-releases.md).
+
+VictoriaMetrics has achieved security certifications for Database Software Development and Software-Based Monitoring Services.
+We apply strict security measures in everything we do. See [Security page](https://victoriametrics.com/security/) for more details.
 
 ## Prominent features
 
@@ -105,6 +108,23 @@ VictoriaMetrics has the following prominent features:
 
 See [case studies for VictoriaMetrics](https://docs.victoriametrics.com/CaseStudies.html) and [various Articles about VictoriaMetrics](https://docs.victoriametrics.com/Articles.html).
 
+## Components
+
+VictoriaMetrics ecosystem contains the following components additionally to [single-node VictoriaMetrics](https://docs.victoriametrics.com/):
+
+- [vmagent](https://docs.victoriametrics.com/vmagent/) - lightweight agent for receiving metrics via [pull-based](https://docs.victoriametrics.com/vmagent/#how-to-collect-metrics-in-prometheus-format)
+  and [push-based](https://docs.victoriametrics.com/vmagent/#how-to-push-data-to-vmagent) protocols, transforming and sending them to the configured Prometheus-compatible
+  remote storage systems such as VictoriaMetrics.
+- [vmalert](https://docs.victoriametrics.com/vmalert/) - a service for processing Prometheus-compatible alerting and recording rules.
+- [vmalert-tool](https://docs.victoriametrics.com/vmalert-tool/) -  a tool for validating alerting and recording rules.
+- [vmauth](https://docs.victoriametrics.com/vmauth/) - authorization proxy and load balancer optimized for VictoriaMetrics products.
+- [vmgateway](https://docs.victoriametrics.com/vmgateway/) - auhtorization proxy with per-[tenant](https://docs.victoriametrics.com/cluster-victoriametrics/#multitenancy) rate limiting cababilities.
+- [vmctl](https://docs.victoriametrics.com/vmctl/) - a tool for migrating and copying data between different storage systems for metrics.
+- [vmbackup](https://docs.victoriametrics.com/vmbackup/), [vmrestore](https://docs.victoriametrics.com/vmrestore/) and [vmbackupmanager](https://docs.victoriametrics.com/vmbackupmanager/) -
+  tools for creating backups and restoring from backups for VictoriaMetrics data.
+- `vminsert`, `vmselect` and `vmstorage` - components of [VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
+- [VictoriaLogs](https://docs.victoriametrics.com/VictoriaLogs/) - user-friendly cost-efficient database for logs.
+
 ## Operation
 
 ### Install

Single-server-VictoriaMetrics.md

@@ -29,24 +29,27 @@ VictoriaMetrics is available in [binary releases](https://github.com/VictoriaMet
 [Docker images](https://hub.docker.com/r/victoriametrics/victoria-metrics/), [Snap packages](https://snapcraft.io/victoriametrics)
 and [source code](https://github.com/VictoriaMetrics/VictoriaMetrics). 
 
-The cluster version of VictoriaMetrics is available [here](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
+Documentation for the cluster version of VictoriaMetrics is available [here](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
 
 Learn more about [key concepts](https://docs.victoriametrics.com/keyConcepts.html) of VictoriaMetrics and follow the 
 [quick start guide](https://docs.victoriametrics.com/Quick-Start.html) for a better experience.
 
-There is also a user-friendly database for logs - [VictoriaLogs](https://docs.victoriametrics.com/VictoriaLogs/).
-
 If you have questions about VictoriaMetrics, then feel free asking them in the [VictoriaMetrics community Slack chat](https://slack.victoriametrics.com/).
 
-[Contact us](mailto:info@victoriametrics.com) if you need enterprise support for VictoriaMetrics. 
+[Contact us](mailto:info@victoriametrics.com) if you need enterprise support for VictoriaMetrics.
 See [features available in enterprise package](https://docs.victoriametrics.com/enterprise.html).
-Enterprise binaries can be downloaded and evaluated for free 
+Enterprise binaries can be downloaded and evaluated for free
 from [the releases page](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/latest).
 You can also [request a free trial license](https://victoriametrics.com/products/enterprise/trial/).
 
-VictoriaMetrics is developed at a fast pace, so it is recommended to check the [CHANGELOG](https://docs.victoriametrics.com/CHANGELOG.html) periodically, and to perform [regular upgrades](#how-to-upgrade-victoriametrics).
+VictoriaMetrics is developed at a fast pace, so it is recommended to check the [CHANGELOG](https://docs.victoriametrics.com/CHANGELOG.html) periodically,
+and to perform [regular upgrades](#how-to-upgrade-victoriametrics).
 
-VictoriaMetrics has achieved security certifications for Database Software Development and Software-Based Monitoring Services. We apply strict security measures in everything we do. See our [Security page](https://victoriametrics.com/security/) for more details.
+[VictoriaMetrics enterprise](https://docs.victoriametrics.com/enterprise/) provides long-term support lines of releases (LTS releases) -
+see [these docs](https://docs.victoriametrics.com/LTS-releases.md).
+
+VictoriaMetrics has achieved security certifications for Database Software Development and Software-Based Monitoring Services.
+We apply strict security measures in everything we do. See [Security page](https://victoriametrics.com/security/) for more details.
 
 ## Prominent features
 
@@ -113,6 +116,23 @@ VictoriaMetrics has the following prominent features:
 
 See [case studies for VictoriaMetrics](https://docs.victoriametrics.com/CaseStudies.html) and [various Articles about VictoriaMetrics](https://docs.victoriametrics.com/Articles.html).
 
+## Components
+
+VictoriaMetrics ecosystem contains the following components additionally to [single-node VictoriaMetrics](https://docs.victoriametrics.com/):
+
+- [vmagent](https://docs.victoriametrics.com/vmagent/) - lightweight agent for receiving metrics via [pull-based](https://docs.victoriametrics.com/vmagent/#how-to-collect-metrics-in-prometheus-format)
+  and [push-based](https://docs.victoriametrics.com/vmagent/#how-to-push-data-to-vmagent) protocols, transforming and sending them to the configured Prometheus-compatible
+  remote storage systems such as VictoriaMetrics.
+- [vmalert](https://docs.victoriametrics.com/vmalert/) - a service for processing Prometheus-compatible alerting and recording rules.
+- [vmalert-tool](https://docs.victoriametrics.com/vmalert-tool/) -  a tool for validating alerting and recording rules.
+- [vmauth](https://docs.victoriametrics.com/vmauth/) - authorization proxy and load balancer optimized for VictoriaMetrics products.
+- [vmgateway](https://docs.victoriametrics.com/vmgateway/) - auhtorization proxy with per-[tenant](https://docs.victoriametrics.com/cluster-victoriametrics/#multitenancy) rate limiting cababilities.
+- [vmctl](https://docs.victoriametrics.com/vmctl/) - a tool for migrating and copying data between different storage systems for metrics.
+- [vmbackup](https://docs.victoriametrics.com/vmbackup/), [vmrestore](https://docs.victoriametrics.com/vmrestore/) and [vmbackupmanager](https://docs.victoriametrics.com/vmbackupmanager/) -
+  tools for creating backups and restoring from backups for VictoriaMetrics data.
+- `vminsert`, `vmselect` and `vmstorage` - components of [VictoriaMetrics cluster](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html).
+- [VictoriaLogs](https://docs.victoriametrics.com/VictoriaLogs/) - user-friendly cost-efficient database for logs.
+
 ## Operation
 
 ### Install

enterprise.md

@@ -40,7 +40,7 @@ See [these docs](#running-victoriametrics-enterprise) for details on how to run
 VictoriaMetrics Enterprise includes [all the features of the community edition](https://docs.victoriametrics.com/#prominent-features),
 plus the following additional features:
 
-- Stable releases with long-term support, which contains important bugfixes. See, for example, [v1.97.x LTS release](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.97.1).
+- Stable releases with long-term support, which contains important bugfixes and security fixes. See [these docs](https://docs.victoriametrics.com/LTS-releases.html).
 - First-class consulting and technical support provided by the core VictoriaMetrics dev team.
 - [Monitoring of monitoring](https://victoriametrics.com/products/mom/) - this feature allows forecasting
   and preventing possible issues in VictoriaMetrics setups.