Copy over changelogs from fern repo (#119)

Co-authored-by: dsinghvi <[email protected]>

Author: fern-support

fern/products/sdks/overview/go/changelog/2024-09-08.mdx

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+## 0.30.0
+**`(feat):`** Add support for nil-safe getter methods. Callers can more easily access nested properties by chaining together getter method calls instead of a long series of `!= nil` checks.
+
+## 0.24.0
+**`(feat):`** Add support for reading headers from environment variables (e.g. `X-API-Version`).
+

fern/products/sdks/overview/go/changelog/2025-07-23.mdx

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+## 2.38.6
+**`(fix):`** Add explicit type to pagination lambda parameters
+
+

fern/products/sdks/overview/java/changelog/2025-07-21.mdx

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+## 2.38.7
+**`(fix):`** Swap InputStreamRequestBody arguments to match constructor
+
+

fern/products/sdks/overview/java/changelog/2025-07-23.mdx

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+## 0.1.3
+**`(feat):`** Support inheritance for types and inlined requests.
+
+**`(feat):`** Support undiscriminated unions.
+
+**`(fix):`** Fix ci.yml `php-version` field name.
+
+**`(feat):`** We now allow an empty constructor on types with no required properties.
+

fern/products/sdks/overview/php/changelog/2025-07-23.mdx

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+## 4.14.1
+**`(fix):`** The generated GitHub workflow now uses `ubuntu-latest` instead of `ubuntu-20.04`
+
+