TIOBE Index October 2026 Java Closes on C++

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Python regained ground in October’s TIOBE Index, while Java narrowed its gap with C++ and Julia returned to the top 20 for the first time in three years.

The October 2026 rankings kept the top five programming languages in the same order, with Python maintaining a substantial lead. R overtook SQL in the only ranking change within the top 10.

However, this month’s results come with an important caveat. TIOBE has expanded its methodology to include Mandarin Chinese search terms, meaning some rating changes may reflect broader data coverage rather than shifts in developer interest.

The TIOBE Programming Community Index tracks programming language popularity using search activity related to skilled engineers, courses, and third-party vendors.

Python and C recover rating share

Python climbs from 17.76% to 19.23%, reversing September’s decline. Even after the gain, its rating remains 5.23 percentage points below October 2025.

C rises from 10.28% to 11.33% and...

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