diff --git a/doc/ce-upgrading-texlive.md b/doc/ce-upgrading-texlive.md
index 901ec7c..d7cc5fc 100644
--- a/doc/ce-upgrading-texlive.md
+++ b/doc/ce-upgrading-texlive.md
@@ -1,16 +1,67 @@
 # Community Edition: Upgrading TexLive
 
-To save bandwidth, the Overleaf image only comes with a minimal install of [TeXLive](https://www.tug.org/texlive/). To upgrade to a complete TeXLive installation, run the installation script in the Overleaf container with the following command:
+To save bandwidth, the Overleaf image only comes with a minimal install of [TeX Live](https://www.tug.org/texlive/). You can install more packages or upgrade to a complete TeX Live installation using the [tlmgr](https://www.tug.org/texlive/tlmgr.html) command in the Overleaf container.
 
-```bash
-$ bin/docker-compose exec sharelatex tlmgr install scheme-full
+Server Pro users have the option of using [Sandboxed Compiles](./sandboxed-compiles.md), which will automatically pull down a full TexLive image. The following instructions only apply to Community Edition installations.
+
+## Getting inside the Overleaf container
+
+To start a shell inside the Overleaf container, run
+
+```
+$ bin/shell
 ```
 
-Alternatively you can install packages manually as you need by replacing `scheme-full` with the package name.
+You will get a prompt that looks like:
+```
+root@309b192d4030:/#
+```
 
-Note that these changes made inside the `sharelatex` container with `docker exec` are ephemeral --- they will be lost if Compose recreates the container. To make them persistent, you can use `docker commit` to save the changes to a new docker image:
+In the following instructions, we will assume that you are in the container.
 
-```bash
+## Determining your current TeX Live version
+
+TeX Live is released every year around the month of April. Steps for using `tlmgr` are different depending on whether you are using the current release or an older one. You can check which version of TeX Live you are running with `tlmgr --version`. For example, this installation runs TeX Live 2021:
+
+```
+# tlmgr --version
+tlmgr revision 59291 (2021-05-21 05:14:40 +0200)
+tlmgr using installation: /usr/local/texlive/2021
+TeX Live (https://tug.org/texlive) version 2021
+```
+
+The current release of TeX Live can be found on [the TeX Live homepage](https://www.tug.org/texlive/).
+
+If you are running an older TeX Live version, you have two options. We usually release a new version of the Overleaf docker image shortly after a TeX Live release. You can wait for it and [upgrade your image using the `bin/upgrade` script](https://github.com/overleaf/toolkit/blob/master/doc/upgrading.md).
+
+If you prefer to keep the older TeX Live release, you will first need to tell `tlmgr` to use a historic repository. You will find instructions for doing so [here](https://www.tug.org/texlive/acquire.html#past).
+
+## Installing packages
+
+To install a complete TeX Live installation, run this command inside the Overleaf container:
+```
+# tlmgr install scheme-full
+```
+
+You can also install individual packages manually:
+
+```
+# tlmgr install tikzlings tikzmarmots tikzducks
+```
+
+Many more commands are available. Find out more with:
+
+```
+# tlmgr help
+```
+
+When you're done, type `exit` or press Control-D to exit the shell.
+
+## Saving your changes
+
+The changes you've just made have changed the `sharelatex` container, but are ephemeral --- they will be lost if Compose recreates the container. To make them persistent, use `docker commit` to save the changes to a new docker image:
+
+```
 $ docker commit sharelatex sharelatex/sharelatex:with-texlive-full
 ```
 
@@ -30,6 +81,3 @@ services:
 Then run `bin/stop && bin/docker-compose rm -f sharelatex && bin/up`, to recreate the container.
 
 Note that you will need to remove this committed container and repeat these steps when you [upgrade](./upgrading.md).
-
-Server Pro users have the option of using [Sandbox Compiles](./sandboxed-compiles.md), which will automatically pull down a full TexLive image. 
-