Upgrades: Elasticsearch (6.8 to 8.7) and Rails (7.1 to 7.2)
After running on Elasticsearch 6.8 for the past so many years, we have finally upgraded it to Elasticsearch 8.7. There were some very minor changes in the API, but for the most part, it did not affect the code base too much. We had to re-index all the feature annotations, and it took 1.5 day…