Please refer to the Release Notes at https://github.com/vmware/open-vm-tools/blob/stable-12.3.0/ReleaseNotes.md
The granular changes that have gone into the 12.3.0 release are in the ChangeLog at https://github.com/vmware/open-vm-tools/blob/stable-12.3.0/open-vm-tools/ChangeLog
There are no new features in the open-vm-tools 12.3.0 release. This is primarily a maintenance release that addresses a few critical problems, including:
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This release resolves CVE-2023-20900. For more information on this vulnerability and its impact on VMware products, see https://www.vmware.com/security/advisories/VMSA-2023-0019.html.
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A tools.conf configuration setting is available to temporaily direct Linux quiesced snaphots to restore pre open-vm-tools 12.2.0 behavior of ignoring file systems already frozen.
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Building of the VMware Guest Authentication Service (VGAuth) using "xml-security-c" and "xerces-c" is being deprecated.
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A number of Coverity reported issues have been addressed.
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A number of GitHub issues and pull requests have been handled. Please see the Resolves Issues section of the Release Notes.
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For issues resolved in this release, see the Resolved Issues section of the Release Notes.