Usually, during the winter holidays, we remember our achievements done during the previous year. I have never done this publicly, but I have decided to break the tradition this year and summarize my main events of the past year.

As you may know, I am a long user of an Ubuntu-flavored operating system (Kubuntu). So as I need a stable system, I usually stick with the Long Term Support (LTS) releases. Currently, my laptop runs Kubuntu 20.04.

At my new working place, people actively use calendar/email facilities. Hence, I have to start using an email client that supports this functionality. Our IT support recommends using Thunderbird, and I followed their advice. As usual in Linux distros, I have installed a Thunderbird version using my package manager and configured my email client according to the recommendations.

However, after I started to use it, I have faced issues in calendar functionality (e.g., its inability to synchronize event data) that were very difficult to triage. I checked some forums looking for explanations of some particular error codes and how to resolve them. There, I discovered that the calendar sub-system was improved considerably in Thunderbird 91.0. I checked my version of Thunderbird, and it was 78.13.x. After I found that, I decided to update Thunderbird. However, at that time, I did not manage to find a Personal Package Archive (PPA) or a deb file with this newer version. Therefore, I decided to wait until a new Ubuntu version (21.10) would be released because I thought it might bring Thunderbird 91. Unfortunately, this did not happen for older releases, and I decided to install Thunderbird 91 manually. In this article, I describe how I updated Thunderbird from version 78 to 91.

In the article, I show the differences in the website analytic metrics collected on the server- and client-side. It contains several dynamic values (e.g., pageviews or visits number, the date range, etc.) scattered throughout the text. To update them, I need to pass through the content and adjust them manually. So as I plan to bring the data in this post up to date regularly (I get new input every day), this task cumulatively could consume a lot of my time. Therefore, I have decided that the data in the post should be updated automatically. In this article, I describe how I have achieved this goal.