Update HISTORY.md

HISTORY.md

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 ## 0.6.0
-* [update types and model aliases](https://github.com/extremeheat/LXL/commit/069a0a2d7969328ffe2062234a54f58331905ddc) (thanks @extremeheat)
+### Breaking
+
+* CompletionService and GoogleAIStudioCompletionService
+  * `.requestCompletion` now returns an array of completions
+
+### Features
+* `.requestCompletion`'s options objects now also take in the following options, which will be passed to the model's generation options:
+```coffee
+    maxTokens: number
+    temperature: number
+    topP: number
+    topK: number
+```
+* The constructors for CompletionService and GoogleAIStudioCompletionService have also been updated to take an additional objects object. These the object can contain a `generationOptions` dictionary that will be applied by default to all requestCompletion calls. You can override these options by passing them in individual requestCompletion calls.
+* Export a `SafetyError` object that can be used in instanceof checks to see if a model response failed due content filtering rules.
+
+#### Flow
+Added Flow, a class for building dialogues, see [docs/flow.md](https://github.com/extremeheat/LXL/blob/main/docs/flow.md).
+
+### Changelog
 * [Breaking changes to allow custom generation options and multi-completions (#28)](https://github.com/extremeheat/LXL/commit/2d836f2ad6e8cd177fc46b18f945725d9083ae50) (thanks @extremeheat)
 * [Support Gemini 1.5 Pro with Google AI Studio API (#27)](https://github.com/extremeheat/LXL/commit/73cdf1d0f079e8f2440765bef9d7484f0c76b5ba) (thanks @extremeheat)
-* [Bump @google/generative-ai from 0.5.0 to 0.6.0 (#26)](https://github.com/extremeheat/LXL/commit/f4b01f05ee0632181bf1eafc93b1ce9147866053) (thanks @dependabot[bot])
-* [Bump @google/generative-ai from 0.2.1 to 0.5.0 (#25)](https://github.com/extremeheat/LXL/commit/606d50bb1eed5f0fb1d4a037d0b4536d8c746c7d) (thanks @dependabot[bot])
 * [Add Flow for advanced prompt flows with templating (#23)](https://github.com/extremeheat/LXL/commit/03cf5261395fe619a325e008ad29ab406529eda8) (thanks @extremeheat)
 * [Add `stripDiff`, support truncation and binary files in collectFolderFiles and markdown gen, handle corrupt caches (#20)](https://github.com/extremeheat/LXL/commit/fe7a4a5871787fdbfd829d548852e588f5ec8ab9) (thanks @extremeheat)