| Early 1980s | Apple creates the Software Evangelist program. Mike Boich & later Guy Kawasaki recruit developers for the Macintosh. | Widely credited as the first modern DevRel effort. |
| 1997 | Microsoft Developer Relations Group launches to court ISVs and track Windows app growth. | Shows DevRel at enterprise scale and cements the practice in mainstream tech. |
| Mid-2000s | Web 2.0/API-first companies (Twilio, SendGrid, Stripe, etc.) brand themselves “developer-first.” | DevRel evolves from lone evangelists to multifunction teams (docs, DX, community). |
| 2015 → present | Dedicated events (DevRelCon), books (The Business Value of Developer Relations), and annual surveys appear. | DevRel becomes a recognised career path with its own metrics and frameworks. |