There were a few folks with very reasonable questions about the 🔢 *Numbers* section of this email, hopefully this helps:

📈 *A sparkline explainer *🌠

The 🔢 *Numbers* section of this email had sparklines:

- Sparklines are small graphs of a set of numbers - 1, 2, 3, 4, 5 looks like ▁▃▄▆█ - 0, 1, 0, 1, 0 looks like ▁█▁█▁ - There a are 5 bars, each is a train version - from left to right: 1.37.0-wmf.20, 1.37.0-wmf.21, 1.37.0-wmf.23, 1.38.0-wmf.1, *1.38.0-wmf.2* (latest) - Metric key: - *Patches*: # of changes we deployed with the train - *Rollbacks*: # of times we undeployed the new version due to problems - *Days of delay*: # of days we delayed the new version due to problems - *Blocking tasks: *# of tasks we had to investigate before full deployment

All these numbers come from our "train-stats" repo https://gitlab.wikimedia.org/thcipriani/train-stats. Hopefully, that's helpful for the curious or confused.

<3 – Tyler

On Mon, Oct 4, 2021 at 5:26 PM Tyler Cipriani tcipriani@wikimedia.org wrote:

This email is a summary of the Wikimedia production deployment of 1.38.0-wmf.2.

• Conductor: Jeena Huneidi
• Backup: Dan Duvall
• Blocker task: T281166 https://phabricator.wikimedia.org/T281166
• Current Status: Live everywhere https://versions.toolforge.org/

*🔢 Numbers*

• 351 patches ▁▄▇██
• 1 rollback █▁█▁█
• 0 days of delay █▁█▁▁
• 8 blocking tasks ▆▃▃▁█
• Closest to the buzzer: 3.3 hours before branch cut

https://gerrit.wikimedia.org/r/c/mediawiki/core/+/724202 a nice catch by Reedy

*🚂🌈 Trainbow love*

This train was bound for glory thanks to:

• DannyS712
• Legoktm
• Kosta Harlan
• Samuel
• Krinkle
• Jon Robson
• Olga Vasileva
• Taavi Väänänen
• Petr Pchelko
• Zabe

Sincere trainbow appreciation to you all <3

With wikilove,

Tyler Cipriani (he/him) Engineering Manager, Release Engineering Wikimedia Foundation