---
canonical: https://safekit.evidian.com/products/high-availability-software-for-application-clustering/safekit-release-notes-8-2/
SafeKit 8.2 Release Notes — Part 1 of 7 — Overview & Before Starting (sections 1.1–1.3)
---
# SafeKit Release Notes
## SafeKit 8.2
Evidian SafeKit Release Notes 8.2
SafeKit Release NotesHigh Availability Software for Critical Applications
**Overview**
| | |
| --- | --- |
| **Subject** | This document provides information about SafeKit releases: major changes, restrictions and known problems, migration instructions. |
| **Content** | [Before starting](#_SafeKit_7.0_-) [Major changes](#_Tests_1) [Restrictions and known problems](#_Restrictions_and_Known) [Migration instructions](#_Migration_Instructions) [Table of contents](#TableOfContents) |
| Version | SafeKit 8.2 |
| **Operating Systems** | Windows and Linux; for a detailed list of supported OS refer to [section](#_Supported_Operating_Systems) 1.1 |
| **Web Site** | Eviden SafeKit marketing site: [https://safekit.evidian.com](https://safekit.evidian.com/safekit) Eviden SafeKit support site: |
| Ref | 39 A2 19LT 34 |
Copyright © Evidian, 2025
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Evidian disclaims
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The information and
specifications in this document are subject to change without notice. Consult
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**Table of Contents**
[SafeKit Release
Notes High Availability Software for Critical Applications. 1](#_Toc213835327)
[Overview.. 3](#_Toc213835328)
[1.... Before starting. 7](#_Toc213835329)
[1.1..... Supported
operating systems 7](#_Toc213835330)
[1.1.1 Windows. 7](#_Toc213835331)
[1.1.2 Linux. 7](#_Toc213835332)
[1.2..... SafeKit
cluster upgrade. 8](#_Toc213835333)
[1.2.1 Minor
upgrade. 9](#_Toc213835334)
[1.2.2 Major
upgrade. 9](#_Toc213835335)
[1.3..... Documentation. 10](#_Toc213835336)
[2.... Major changes. 11](#_Toc213835337)
[2.1..... Major
changes between SafeKit 8.2 and SafeKit 7.5. 11](#_Toc213835338)
[2.1.1 New
ergonomic web console. 11](#_Toc213835339)
[2.1.2 SafeKit
web service enhancement 12](#_Toc213835340)
[2.1.3 SafeKit
logs enhancement 13](#_Toc213835341)
[2.1.4 Replication
enhancement 14](#_Toc213835342)
[2.1.5 Custom
checker simplification. 15](#_Toc213835343)
[2.1.6 Splitbrain
checker enhancement 16](#_Toc213835344)
[2.1.7 TCP
checker simplification. 16](#_Toc213835345)
[2.1.8 Ping
checker simplification. 17](#_Toc213835346)
[2.1.9 Module
configuration with time-based attributes. 17](#_Toc213835347)
[2.1.10 Module
templates. 17](#_Toc213835348)
[2.1.11 Permanent
disabling of application checkers 18](#_Toc213835349)
[2.1.12 License
check. 18](#_Toc213835350)
[2.1.13 SNMP
monitoring. 19](#_Toc213835351)
[2.1.14 SafeKit
package upgrade. 19](#_Toc213835352)
[2.1.15 SafeKit
email notification agent 19](#_Toc213835353)
[2.1.16 Miscellaneous 20](#_Toc213835354)
[2.2..... Major
changes between SafeKit 7.5.2 and SafeKit 7.5.1. 21](#_Toc213835355)
[2.2.1 Virtual
IP. 21](#_Toc213835356)
[2.2.2 SafeKit
web console. 22](#_Toc213835357)
[2.2.3 Japanese
language support 22](#_Toc213835358)
[2.2.4 Miscellaneous 22](#_Toc213835359)
[2.3..... Major
changes between SafeKit 7.5.1 and SafeKit 7.4.0. 22](#_Toc213835360)
[2.3.1 SafeKit
install procedure. 22](#_Toc213835361)
[2.3.2 Module
resources and web console enhancement 24](#_Toc213835362)
[2.3.3 Module
templates. 26](#_Toc213835363)
[2.3.4 New
attributes for the module configuration. 26](#_Toc213835364)
[2.3.5 Scripts
for the test, debug, or support 27](#_Toc213835365)
[2.3.6 Miscellaneous 28](#_Toc213835366)
[2.4..... Major
changes between SafeKit 7.4.0 and SafeKit 7.3.0. 29](#_Toc213835367)
[2.4.1 SafeKit
cluster in Microsoft Azure, Amazon Aws, and Google GCP clouds 29](#_Toc213835368)
[2.4.2 File
replication. 30](#_Toc213835369)
[2.4.3 Process
death detection. 31](#_Toc213835370)
[2.4.4 SafeKit
web console and web server 31](#_Toc213835371)
[2.4.5 DNS
name resolution. 31](#_Toc213835372)
[2.4.6 Miscellaneous 32](#_Toc213835373)
[3.... Restrictions and known problems. 33](#_Toc213835374)
[3.1..... Restrictions
and known problems from 7.4.0 to 8.2. 33](#_Toc213835375)
[3.1.1 Antivirus
setup. 33](#_Toc213835376)
[3.1.2 Restrictions 33](#_Toc213835377)
[3.1.3 Known
problems 34](#_Toc213835378)
[3.2..... Restrictions
and known problems with SafeKit 8.2. 34](#_Toc213835379)
[3.3..... Restrictions
and known problems with SafeKit 7.5.2. 35](#_Toc213835380)
[3.4..... Restrictions
and known problems with SafeKit 7.5.1. 35](#_Toc213835381)
[3.5..... Restrictions
and known problems with SafeKit 7.4.0. 35](#_Toc213835382)
[4.... Migration instructions. 37](#_Toc213835383)
[4.1..... Migrating
from SafeKit 7.4 or 7.5 to SafeKit 8.2. 37](#_Toc213835384)
[4.1.1 Upgrade
procedure. 37](#_Toc213835385)
[4.2..... Migrating
from SafeKit 7.5.1 to SafeKit 7.5.2. 41](#_Toc213835386)
[4.3..... Migrating
from SafeKit 7.4.0 to SafeKit 7.5.1. 42](#_Toc213835387)
[4.3.1 Upgrade
procedure. 42](#_Toc213835388)
[4.3.2 Configuration
of the module boot start 45](#_Toc213835389)
# 1. Before starting
 [Section](#_Supported_Operating_Systems) 1.1 “Supported operating systems”
 [Section](#_SafeKit_cluster_upgrade) 1.2 “SafeKit cluster upgrade”
 [Section](#_Documentation) 1.3 “Documentation”
This document describes the latest releases
of SafeKit. We encourage users of all previous releases to upgrade to the
latest release when it is possible.
## 1.1 Supported operating systems
At the time this document was written, SafeKit
**8.2.5** is available for Windows operating system listed below. Use
SafeKit 8.2.4 for Linux operating system.
The up-to-date list of supported operating
systems can be found in the [*Software Release Bulletin*](https://customercare.evidian.com/space/PDA/1252786262/Software+Release+Bulletin+-+SafeKit+8.2) and at [Supported version](https://customercare.evidian.com/space/SVE/1194590239/SafeKit).
### 1.1.1 Windows
| | |
| --- | --- |
| · Windows Server 2025 (Intel x86 64-bit kernel) · Windows Server 2022 (Intel x86 64-bit kernel) · Windows Server 2019 (Intel x86 64-bit kernel) · Windows 11 Enterprise (Intel x86 64-bit kernel) · Windows 11 Pro (Intel x86 64-bit kernel) | Two packages are downloadable: · a Windows Installer package (safekit\_windows\_x86\_64\_8\_x\_y\_z.msi) It depends on the VS2022 C runtime which must be previously installed. · a standalone executable bundle (safekit\_windows\_x86\_64\_8\_x\_y\_z.exe) It includes the SafeKit package and the VS2022 C runtime. |
### 1.1.2 Linux
| | |
| --- | --- |
| · Red Hat Enterprise Linux 9 (Intel x86 64-bit kernel) · Red Hat Enterprise Linux 8 (Intel x86 64-bit kernel) | In Red Hat, the following packages are required: · for SafeKit core libxml2 >= 2.9 , libxslt >= 1.1, libcurl >= 7.60,curl >= 7.60, libcrypto.so.1.1()(64bit),libssl.so.1.1()(64bit), libacl >= 2.2 , libattr >= 2.4 , libcap >= 2.48 , readline >= 7.0, binutils >= 2.30 ,coreutils >= 8.30,procps-ng, gawk,sed,nfs-utils,iproute,bind-utils,cronie, zip,unzip, nss-tools,mokutil,pesign,openssl, httpd >= 2.4.37,mod\_auth\_openidc,mod\_ldap,mod\_session,mod\_ssl, policycoreutils,policycoreutils-python-utils for RH 8: lua >= 5.3, lua-libs >= 5.3 for RH > 8: mod\_lua, lua >= 5.4, lua-libs >= 5.4 · for SafeKit file replication nfs-utils · for SafeKit load balancing: gcc, elfutils-libelf-devel, kernel-devel, make During SafeKit install, missing packages for the SafeKit core will be automatically installed via yum command. |
| · Ubuntu 24.04 (Intel x86 64-bit kernel) | In Ubuntu, the following packages are required: · for SafeKit core linux-image-generic (>= 4.18) , libc6 (>= 2.30) , libxml2 (>= 2.9) , libxslt1.1 , libcurl4 (>= 7.60), curl (>= 7.60) , libssl3 , libacl1 (>= 2.2), libattr1 (>= 2.5), libreadline8, openssl (>=3) , binutils (>= 2.30) ,coreutils (>= 8.30) , gawk,sed,iproute2,libcap-ng0,cron , zip,unzip , apache2 , apache2-bin (>= 2.4.37) , nfs-common,libnss3-tools,mokutil,pesign · for SafeKit file replication nfs-common · for SafeKit load balancing: linux-headers-generic, make, gcc (the same version as the one used to compile the kernel) During SafeKit install, missing packages for the SafeKit core will be automatically installed via apt command. |
## 1.2 SafeKit cluster upgrade
You may upgrade SafeKit to fix resolved
issues or take advantages of new features.
Before upgrading:
* check the list of fixes into the [*Software Release Bulletin*](https://customercare.evidian.com/space/PDA/1252786262/Software+Release+Bulletin+-+SafeKit+8.2)
* read this Release Notes to learn about
the new features and migration instructions
* if possible, select the latest SafeKit
package released
As SafeKit is installed on at least two
nodes, you must take certain precautions when upgrading them to limit service unavailability
while respecting version compatibility constraints. These differ according to
whether the upgrade is a minor or a major one. *Migration instructions* in [section](#_Migration_Instructions) 4 details the
procedure to upgrade SafeKit from a version to the next one and specifies
whether it is a minor or major upgrade.
### 1.2.1 Minor upgrade
An upgrade is minor when the installed
SafeKit package and the new one are compatibles in term of communications and
internal components. Usually, only the last version number changes. For
instance, upgrading from 7.5.2.11 to 7.5.2.12 is a minor upgrade. In this case,
the order in which nodes are upgraded can be as described below.
If the automatic startup at boot of the
module is enabled, disable it on all nodes before the upgrade (with the SafeKit
command line or the web console). This prevents the module from starting in the
middle of the upgrade procedure if it causes a reboot. Once the upgrade procedure
is complete, automatic startup at boot can be re-enabled.
| | |
| --- | --- |
| | The upgrade procedure on the node itself is usually the standard one described in the *SafeKit* u*pgrade* section of the *SafeKit User’s* Guide. Anyway, always check for *Migration instructions* in [section](#_Migration_Instructions) 4 for details depending on your SafeKit release. **At step 3 (and 4)**, check that the module (and the application) is operational on node2 before upgrading node1. If not, do not migrate node1 and on node2, rollback to the previous version: 1. Stop the module on node2 2. Force node1 to start as primary 3. Reinstall the previous SafeKit release on node2 |
### 1.2.2 Major upgrade
An upgrade is major when the installed
SafeKit package and the new one are not compatibles in term of communications
or internal components. For instance, upgrading from 7.5.2.12 to 8.2.0.3 is a
major upgrade. In this case, the upgrade may require applying specific migration
instructions before being operational. The order in which nodes are upgraded must
be as described below.
If the automatic startup at boot of the
module is enabled, disable it on all nodes before the upgrade (with the SafeKit
command line or the web console). This prevents the module from starting in the
middle of the upgrade procedure if it causes a reboot. Once the upgrade
procedure is complete, automatic startup at boot can be re-enabled.
| | |
| --- | --- |
| | The upgrade procedure on the node itself may not be the standard one. Refer *Migration instructions* section in [section](#_Migration_Instructions) 4 for details depending on your SafeKit release. Note that it is safe to apply this upgrade order also for minor upgrades. **At step 3**, check that the module (and the application) is operational on node1 before upgrading node2. If not, do not migrate node2 and on node1, rollback to the previous version: 1. Stop the module on node1 2. Force node2, that is not updated, to start as primary 3. Reinstall the previous SafeKit release on node1 |
## 1.3 Documentation
The latest version of the SafeKit 8.2
documentation can be found at [Documentation – SafeKit 8.2](https://customercare.evidian.com/space/PDA/1253015652/Documentation+-+SafeKit+8.2).
| | |
| --- | --- |
| *SafeKit Solution* | SafeKit solution is fully detailed at |
| *SafeKit Release Notes* | It describes new features of major SafeKit releases and provides migration instructions. |
| [*Software Release Bulletin*](https://customercare.evidian.com/space/PDA/1252786262/Software+Release+Bulletin+-+SafeKit+8.2) | Technical release bulletin for all SafeKit 8.2 packages with the description of changes and problems that are fixed. |
| [*SafeKit Knowledge Base*](https://customercare.evidian.com/space/PDA/1470005313/Knowledge+Base+-+SafeKit+7.5++&+8.2) | List of known problems and restrictions on SafeKit |
| [*SafeKit User’s Guide*](https://customercare.evidian.com/space/OPD/1208320038/SafeKit+8.2?attachment=https://customercare.evidian.com/download/attachments/1208320038/safekit82userguideen.pdf&type=application/pdf&filename=safekit82userguideen.pdf) *(english version)* [*Guide de l’utilisateur SafeKit*](https://customercare.evidian.com/space/OPD/1208320038/SafeKit+8.2?attachment=https://customercare.evidian.com/download/attachments/1208320038/safekit82userguidefr.pdf&type=application/pdf&filename=safekit82userguidefr.pdf) *(french version)* | It covers all phases of SafeKit implementation: architecture, initial use, installation, configuration, administration, troubleshooting, testing and support. | | | | --- | --- | | Commentaire important contourCommentaire important contour | The links refer the latest version of the SafeKit User’s Guide. For previous versions, refer to the one delivered into the SafeKit package. | |
| [*SafeKit Training*](https://training.my.evidian.com/mod/page/view.php?id=712) *(english version)* | Refer to this online training for a quick start in using SafeKit. |