1# 3.9
2
3* Unsupported Windows Semi-Annual Channel container images removed (OS Versions removed: 20H2). ([#112924](https://github.com/kubernetes/kubernetes/pull/112924), [@marosset](https://github.com/marosset))
4
5# 3.8
6
7* Updating base image for Windows container images from nanoserver to `mcr.microsoft.com/oss/kubernetes/windows-pause-image-base` which gets built on a Windows machine.
8This addresses [Cannot modify registry keys during Windows pause image build process #109161](https://github.com/kubernetes/kubernetes/issues/109161)
9
10# 3.7
11
12* Unsupported Windows Semi-Annual Channel container images removed (OS Versions removed: 1903, 1909, 2004). ([#107056](https://github.com/kubernetes/kubernetes/pull/107056), [@jsturtevant](https://github.com/jsturtevant/))
13
14# 3.6
15
16* Support for Windows container images (OS Versions: 2022) was added. ([#104438](https://github.com/kubernetes/kubernetes/pull/104438), [@nick5616](https://github.com/nick5616))
17
18# 3.5
19
20* Run the container image as non root user per default ([#97963](https://github.com/kubernetes/kubernetes/pull/97963))
21
22# 3.4.1
23
24* Support for Windows container images (OS Versions: 20H2) was added.([#97322](https://prs.k8s.io/97322), [@claudiubelu](https://github.com/claudiubelu))
25
26# 3.4
27
28* Support for Windows container images (OS Versions: 1809, 1903, 1909, 2004) was added. ([#91452](https://prs.k8s.io/91452), [@claudiubelu](https://github.com/claudiubelu))
29
30# 3.3
31
32* update debian-base version to v2.1.0 ([#90665](https://prs.k8s.io/90665), [@justaugustus]
33
34# 3.2
35
36* The pause container is built with the correct "Architecture" metadata. ([#87954](https://prs.k8s.io/87954), [@BenTheElder](https://github.com/BenTheElder))
37
38# 3.1
39
40* The pause container gains a signal handler to clean up orphaned zombie processes. ([#36853](https://prs.k8s.io/36853), [@verb](https://github.com/verb))
41* `pause -v` will return build information for the pause binary. ([#56762](https://prs.k8s.io/56762), [@verb](https://github.com/verb))
42
43# 3.0
44
45* The pause container was rewritten entirely in C. ([#23009](https://prs.k8s.io/23009), [@uluyol](https://github.com/uluyol))
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