Merge pull request #736 from dtrudg/399-docs

Update changelog and install docs for 3.9.9

CHANGELOG.md

@@ -7,12 +7,12 @@
   in the next minor release (3.10.x). Users utilizing plugins with
   SingularityCE 3.9.x should use version 1.17.x of the Go toolchain.
 
-## Changes since last release
+## v3.9.9 \[2022-04-22\]
 
 ### Bug Fixes
 
-- Use HEAD request when checking digest of remote OCI image sources, instead of
-  GET. Greatly reduces Singularity's impact on Docker Hub API limits.
+- Use HEAD request when checking digest of remote OCI image sources, with GET as
+  a fall-back. Greatly reduces Singularity's impact on Docker Hub API limits.
 
 ## v3.9.8 \[2022-04-07\]
 

INSTALL.md

@@ -107,10 +107,10 @@ cd singularity
 By default your clone will be on the `master` branch which is where development
 of SingularityCE happens. To build a specific version of SingularityCE, check
 out a [release tag](https://github.com/sylabs/singularity/tags) before
-compiling. E.g. to build the 3.9.8 release checkout the `v3.9.8` tag:
+compiling. E.g. to build the 3.9.9 release checkout the `v3.9.9` tag:
 
 ```sh
-git checkout v3.9.8
+git checkout v3.9.9
 ```
 
 ## Compiling SingularityCE
@@ -161,7 +161,7 @@ build and install the RPM like this:
 <!-- markdownlint-disable MD013 -->
 
 ```sh
-export VERSION=3.9.7  # this is the singularity version, change as you need
+export VERSION=3.9.9  # this is the singularity version, change as you need
 
 # Fetch the source
 wget https://github.com/sylabs/singularity/releases/download/v${VERSION}/singularity-ce-${VERSION}.tar.gz