Open Source Programs

2026 timeline

Application windows and contribution seasons for the programs on this list, in order. Dates marked approximate have not been confirmed by the organizers.

January 2026

Jan 7-20 LFX Spring 2026 Project Proposal Windowapprox
Jan 14 Season of KDE 2026 Application Deadline
Jan 19 GSoC 2026 Organization Applications Open18:00 UTC
Jan 23 Season of KDE 2026 Work Begins

February 2026

Feb 3 GSoC 2026 Organization Applications Deadline18:00 UTC
Feb 18 ESoC 2026 Batch 1 Applications Open
Feb 19 GSoC 2026 Accepted Organizations Published18:00 UTC

March 2026

Mar 16 GSoC 2026 Contributor Applications Open18:00 UTC
Mar 18 ESoC 2026 Batch 1 Applications Close
Mar 19 ESoC 2026 Batch 2 Applications Open
Mar 20 Season of KDE 2026 Work Ends
Mar 31 GSoC 2026 Contributor Applications Deadline18:00 UTC

April 2026

Apr 16 ESoC 2026 Batch 2 Applications Close
Apr 21 GSoC 2026 Contributor Proposal Rankings Due18:00 UTC
Apr 30 GSoC 2026 Accepted Projects Announced18:00 UTC
Apr-May Outreachy summer cohort application / contribution periodapprox
Apr-May C4GT application / selection cycleapprox

May 2026

May 1-24 GSoC 2026 Community Bonding Period
May 25 GSoC 2026 Coding Officially Begins
May Summer of Bitcoin application / selection periodapprox

June 2026

Jun-Aug Outreachy summer internship cohortapprox
Jun-Aug C4GT Dedicated Mentoring Programapprox
Jun-Aug FOSSEE Summer Fellowshipapprox

July 2026

Jul LFX Summer / mid-year mentorship cyclesapprox

August 2026

Aug Summer of Bitcoin program cycleapprox

October 2026

Oct 1-31 Hacktoberfest 2026

November 2026

Nov 2 GSoC 2026 Extended Timeline Final Deadline18:00 UTC

December 2026

Dec 1-24 24 Pull Requests
Dec Outreachy winter cohort / end-of-year application cycleapprox