Weekly Community Update: DB-Engines February Rankings, MySQL 5.6 End-of-Life, and Open‑Source Middleware Progress

DB-Engines February 2021 ranking shows slight declines for the top three databases, with MongoDB modestly rising and MySQL scoring higher compared to the same month in 2019.

The ranking is based on five metrics: keyword search volume on Google/Bing, Google Trends, job postings on Indeed, LinkedIn profile mentions, and related questions on Stack Overflow.

The report notes that the ranking reflects popularity rather than technical superiority, and users should choose databases that fit business needs.

MySQL 5.6 will reach end‑of‑life in February 2021; after that no patches will be provided, and users are encouraged to upgrade to MySQL 8.0.

Community updates include DBLE weekly report with version 2.20.04.0 preparation, bug fixes (e.g., #1649 where clause order, #1654 global table check, #1583 nested DBLE issue, show @@sysparam problem), and upcoming releases; DTLE progress on nomad integration (77%); TXLE enhancements such as automatic compensation for complex sub‑transactions and integration with DBLE.

Additional resources link to articles on MySQL duplicate‑data handling, DNS SRV support in MySQL 8.0.19, Jump Consistent Hash analysis, Adaptive Hash Index construction, and other technical deep‑dives.