
Heather Joslyn
Editor-In-Chief at The New Stack
Features editor at @thenewstack. She/her/y’all. Tweets are my own. I can also be found at @[email protected]
Articles
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2 weeks ago |
thenewstack.io | Heather Joslyn
A staggering amount of Internet traffic — in the 70-80% range, depending on whose data you believe — comes from API calls. But while 85% of developers report building or maintaining RESTful APIs, only about 50% of devs surveyed say they use OpenAPI specs, according to 2023 data from Postman, the API platform company. What does this mean? A lot of red flags, according to Matthew Voget, vice president of engineers at Ambassador.
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1 month ago |
thenewstack.io | Heather Joslyn
At Arm, the company for which Andrew Wafaa serves as fellow and senior director of software communities, open source is the default answer to solving problems and picking tools. “If an engineering group wants to release some software, proprietary, whatever else, that’s the exception,” Wafaa told me in this On the Road episode of The New Stack Makers.
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1 month ago |
thenewstack.io | Heather Joslyn
Businesses always care about how much money they’re spending. But these days, with an uncertain global economy and new demands to invest in AI, they’re reining in costs more aggressively than ever. Running Kubernetes, with clusters that scale up or down in a flash, can be a major cost center for organizations. So why is it so hard to optimize for K8s costs?
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1 month ago |
thenewstack.io | Heather Joslyn
Building an internal platform, or moving a legacy monolith to microservices and the cloud, can be a huge undertaking. Such projects might pale in comparison, though, to what Heroku’s been up to for the last year and a half. In that time frame, the Platform as a Service company has been “re-platforming the platform,” according to Betty Junod, chief marketing officer and senior vice president of Heroku at Salesforce.
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1 month ago |
thenewstack.io | Heather Joslyn
Roughly two weeks after introducing Kagent, an open source framework for AI agents run in Kubernetes, the project’s creator donated it to the Cloud Native Computing Foundation (CNCF). Solo.io announced the move earlier in April at KubeCon + CloudNativeCon Europe, in London. The move is a reflection of Kagent’s status as an instant hit with developers.
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I'll be at #Humanx next month, hosting a panel on the present and future of AI workflows. Come watch and say hello!

The New Stack's Editor-in-Chief @ha_joslyn is speaking at #HumanX2025, the most important AI conference of 2025 🚀 Use discount code spkr_joslyn to register today and save $150 off your pass: https://t.co/45HuKC1Fr3 https://t.co/Tz6IsxlKxI

RT @thenewstack: Google has just launched Gemini Code Assist for individuals, a free AI-coding assistant offering *90 times* more code comp…

RT @thenewstack: Who Should Be Responsible for Software Security? | By @ha_joslyn #OpenSource #SoftwareSecurity #AllThingsOpen @jackhcabl…