236 lines
13 KiB
Markdown
236 lines
13 KiB
Markdown
---
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type: concepts
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---
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# GitLab release and maintenance policy
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GitLab has strict policies governing version naming, as well as release pace for major, minor,
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patch, and security releases. New releases are announced on the [GitLab blog](https://about.gitlab.com/releases/categories/releases/).
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Our current policy is:
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- Backporting bug fixes for **only the current stable release** at any given time. (See [patch releases](#patch-releases).)
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- Backporting security fixes **to the previous two monthly releases in addition to the current stable release**. (See [security releases](#security-releases).)
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In rare cases, release managers may make an exception and backport to more than
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the last two monthly releases. See [Backporting to older
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releases](#backporting-to-older-releases) for more information.
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## Versioning
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GitLab uses [Semantic Versioning](https://semver.org/) for its releases:
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`(Major).(Minor).(Patch)`.
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For example, for GitLab version 12.10.6:
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- `12` represents the major version. The major release was 12.0.0 but often referred to as 12.0.
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- `10` represents the minor version. The minor release was 12.10.0 but often referred to as 12.10.
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- `6` represents the patch number.
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Any part of the version number can increment into multiple digits, for example, 13.10.11.
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The following table describes the version types and their release cadence:
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| Version type | Description | Cadence |
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|:-------------|:------------|:--------|
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| Major | For significant changes, or when any backward-incompatible changes are introduced to the public API. | Yearly. The next major release is GitLab 14.0 on May 22, 2021. Subsequent major releases will be scheduled for May 22 each year, by default. |
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| Minor | For when new backward-compatible functionality is introduced to the public API, a minor feature is introduced, or when a set of smaller features is rolled out. | Monthly on the 22nd. |
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| Patch | For backward-compatible bug fixes that fix incorrect behavior. See [Patch releases](#patch-releases). | As needed. |
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## Upgrade recommendations
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We encourage everyone to run the [latest stable release](https://about.gitlab.com/releases/categories/releases/)
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to ensure that you can easily upgrade to the most secure and feature-rich GitLab experience.
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To make sure you can easily run the most recent stable release, we are working
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hard to keep the update process simple and reliable.
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If you are unable to follow our monthly release cycle, there are a couple of
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cases you need to consider.
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It is considered safe to jump between patch versions and minor versions within
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one major version. For example, it is safe to:
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- Upgrade the *minor* version. For example:
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- `12.7.5` -> `12.10.5`
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- `11.3.4` -> `11.11.1`
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- `10.6.6` -> `10.8.3`
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- `11.3.4` -> `11.11.8`
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- `10.6.6` -> `10.8.7`
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- `9.2.3` -> `9.5.5`
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- `8.9.4` -> `8.12.3`
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- Upgrade the *patch* version. For example:
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- `12.0.4` -> `12.0.12`
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- `11.11.1` -> `11.11.8`
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- `10.6.3` -> `10.6.6`
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- `11.11.1` -> `11.11.8`
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- `10.6.3` -> `10.6.6`
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- `9.5.5` -> `9.5.9`
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- `8.9.2` -> `8.9.6`
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NOTE: **Note:**
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Version specific changes in Omnibus GitLab Linux packages can be found in [the Omnibus GitLab documentation](https://docs.gitlab.com/omnibus/update/README.html#version-specific-changes).
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NOTE: **Note:**
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Instructions are available for downloading an Omnibus GitLab Linux package locally and [manually installing](https://docs.gitlab.com/omnibus/manual_install.html) it.
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### Upgrading major versions
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Upgrading the *major* version requires more attention.
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Backward-incompatible changes and migrations are reserved for major versions.
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We cannot guarantee that upgrading between major versions will be seamless.
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We suggest upgrading to the latest available *minor* version within
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your major version before proceeding to the next major version.
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Doing this will address any backward-incompatible changes or deprecations
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to help ensure a successful upgrade to the next major release.
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It's also important to ensure that any background migrations have been fully completed
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before upgrading to a new major version. To see the current size of the `background_migration` queue,
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[Check for background migrations before upgrading](../update/README.md#checking-for-background-migrations-before-upgrading).
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If your GitLab instance has any GitLab Runners associated with it, it is very
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important to upgrade the GitLab Runners to match the GitLab minor version that was
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upgraded to. This is to ensure [compatibility with GitLab versions](https://docs.gitlab.com/runner/#compatibility-with-gitlab-versions).
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### Version 12 onward: Extra step for major upgrades
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From version 12 onward, an additional step is required. More significant migrations
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may occur during major release upgrades.
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To ensure these are successful:
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1. Increment to the first minor version (`x.0.x`) during the major version jump.
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1. Proceed with upgrading to a newer release.
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**For example: `11.5.x` -> `11.11.x` -> `12.0.x` -> `12.10.x` -> `13.0.x`**
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### Example upgrade paths
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Please see the table below for some examples:
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| Target version | Your version | Recommended upgrade path | Note |
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| --------------------- | ------------ | ------------------------ | ---- |
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| `13.2.3` | `11.5.0` | `11.5.0` -> `11.11.8` -> `12.0.12` -> `12.10.14` -> `13.0.12` -> `13.2.3` | Four intermediate versions are required: the final `11.11`, `12.0`, and `12.10` releases, plus `13.0`. |
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| `13.0.12` | `11.10.8` | `11.10.5` -> `11.11.8` -> `12.0.12` -> `12.10.14` -> `13.0.12` | Three intermediate versions are required: `11.11`, `12.0`, and `12.10`. |
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| `12.10.14` | `11.3.4` | `11.3.4` -> `11.11.8` -> `12.0.12` -> `12.10.14` | Two intermediate versions are required: `11.11` and `12.0` |
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| `12.9.5` | `10.4.5` | `10.4.5` -> `10.8.7` -> `11.11.8` -> `12.0.12` -> `12.9.5` | Three intermediate versions are required: `10.8`, `11.11`, and `12.0`, then `12.9.5` |
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| `12.2.5` | `9.2.6` | `9.2.6` -> `9.5.10` -> `10.8.7` -> `11.11.8` -> `12.0.12` -> `12.2.5` | Four intermediate versions are required: `9.5`, `10.8`, `11.11`, `12.0`, then `12.2`. |
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| `11.3.4` | `8.13.4` | `8.13.4` -> `8.17.7` -> `9.5.10` -> `10.8.7` -> `11.3.4` | `8.17.7` is the last version in version 8, `9.5.10` is the last version in version 9, `10.8.7` is the last version in version 10. |
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### Upgrades from versions earlier than 8.12
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- `8.11.x` and earlier: you might have to upgrade to `8.12.0` specifically before you can upgrade to `8.17.7`. This was [reported in an issue](https://gitlab.com/gitlab-org/gitlab/-/issues/207259).
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- [CI changes prior to version 8.0](https://docs.gitlab.com/omnibus/update/README.html#updating-gitlab-ci-from-prior-540-to-version-714-via-omnibus-gitlab)
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when it was merged into GitLab.
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### Multi-step upgrade paths with GitLab all-in-one Linux package repository
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Linux package managers default to installing the latest available version of a package for installation and upgrades.
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Upgrading directly to the latest major version can be problematic for older GitLab versions that require a multi-stage upgrade path.
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When following an upgrade path spanning multiple versions, for each upgrade, specify the intended GitLab version number in your package manager's install or upgrade command.
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Examples:
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```shell
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# apt-get (Ubuntu/Debian)
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sudo apt-get upgrade gitlab-ee=12.0.12-ee.0
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# yum (RHEL/CentOS 6 and 7)
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yum install gitlab-ee-12.0.12-ee.0.el7
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# dnf (RHEL/CentOS 8)
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dnf install gitlab-ee-12.0.12-ee.0.el8
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# zypper (SUSE)
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zypper install gitlab-ee=12.0.12-ee.0
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```
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## Patch releases
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Patch releases **only include bug fixes** for the current stable released version of
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GitLab.
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These two policies are in place because:
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1. GitLab has Community and Enterprise distributions, doubling the amount of work
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necessary to test/release the software.
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1. Backporting to more than one release creates a high development, quality assurance,
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and support cost.
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1. Supporting parallel version discourages incremental upgrades which over time accumulate in
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complexity and create upgrade challenges for all users. GitLab has a dedicated team ensuring that
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incremental upgrades (and installations) are as simple as possible.
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1. The number of changes created in the GitLab application is high, which contributes to backporting complexity to older releases. In several cases, backporting has to go through the same
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review process a new change goes through.
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1. Ensuring that tests pass on the older release is a considerable challenge in some cases, and as such is very time-consuming.
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Including new features in a patch release is not possible as that would break [Semantic Versioning](https://semver.org/).
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Breaking [Semantic Versioning](https://semver.org/) has the following consequences for users that
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have to adhere to various internal requirements (for example, org. compliance, verifying new features, and similar):
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1. Inability to quickly upgrade to leverage bug fixes included in patch versions.
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1. Inability to quickly upgrade to leverage security fixes included in patch versions.
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1. Requirements consisting of extensive testing for not only stable GitLab release, but every patch version.
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In cases where a strategic user has a requirement to test a feature before it is
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officially released, we can offer to create a Release Candidate (RC) version that will
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include the specific feature. This should be needed only in extreme cases and can be requested for
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consideration by raising an issue in the [release/tasks](https://gitlab.com/gitlab-org/release/tasks/-/issues/new?issuable_template=Backporting-request) issue tracker.
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It is important to note that the Release Candidate will also contain other features and changes as
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it is not possible to easily isolate a specific feature (similar reasons as noted above). The
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Release Candidate will be no different than any code that is deployed to GitLab.com or is publicly
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accessible.
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### Backporting to older releases
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Backporting to more than one stable release is normally reserved for [security releases](#security-releases).
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In some cases, however, we may need to backport *a bug fix* to more than one stable
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release, depending on the severity of the bug.
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The decision on whether backporting a change will be performed is done at the discretion of the
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[current release managers](https://about.gitlab.com/community/release-managers/), similar to what is
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described in the [managing bugs](https://gitlab.com/gitlab-org/gitlab/blob/master/PROCESS.md#managing-bugs) process,
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based on *all* of the following:
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1. Estimated [severity](../development/contributing/issue_workflow.md#severity-labels) of the bug:
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Highest possible impact to users based on the current definition of severity.
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1. Estimated [priority](../development/contributing/issue_workflow.md#priority-labels) of the bug:
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Immediate impact on all impacted users based on the above estimated severity.
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1. Potentially incurring data loss and/or security breach.
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1. Potentially affecting one or more strategic accounts due to a proven inability by the user to upgrade to the current stable version.
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If *all* of the above are satisfied, the backport releases can be created for
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the current stable release, and two previous monthly releases. In rare cases a release manager may grant an exception to backport to more than two previous monthly releases.
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For instance, if we release `11.2.1` with a fix for a severe bug introduced in
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`11.0.0`, we could backport the fix to a new `11.0.x`, and `11.1.x` patch release.
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To request backporting to more than one stable release for consideration, raise an issue in the
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[release/tasks](https://gitlab.com/gitlab-org/release/tasks/-/issues/new?issuable_template=Backporting-request) issue tracker.
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### Security releases
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Security releases are a special kind of patch release that only include security
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fixes and patches (see below) for the previous two monthly releases in addition to the current stable release.
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For very serious security issues, there is
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[precedent](https://about.gitlab.com/releases/2016/05/02/cve-2016-4340-patches/)
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to backport security fixes to even more monthly releases of GitLab.
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This decision is made on a case-by-case basis.
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## More information
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Check [our release posts](https://about.gitlab.com/releases/categories/releases/).
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Each month, we publish either a major or minor release of GitLab. At the end
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of those release posts, there are three sections to look for: Deprecations, Removals, and Important notes on upgrading. These will include:
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- Steps you need to perform as part of an upgrade.
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For example [8.12](https://about.gitlab.com/releases/2016/09/22/gitlab-8-12-released/#upgrade-barometer)
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required the Elasticsearch index to be recreated. Any older version of GitLab upgrading to 8.12 or higher would require this.
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- Changes to the versions of software we support such as
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[ceasing support for IE11 in GitLab 13](https://about.gitlab.com/releases/2020/03/22/gitlab-12-9-released/#ending-support-for-internet-explorer-11).
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You should check all the major and minor versions you're passing over.
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More information about the release procedures can be found in our
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[release documentation](https://gitlab.com/gitlab-org/release/docs). You may also want to read our
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[Responsible Disclosure Policy](https://about.gitlab.com/security/disclosure/).
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