1.3. Release Notes for version 2.1.0
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## 1.3. Release Notes for version 2.1.0

- Switch to a Cabal build system: you need a recent version of Cabal (1.1.6 or later). If you have GHC 6.4.2, then you need to upgrade Cabal before building Alex. GHC 6.6 is fine.

- Slight change in the error semantics: the input returned on error is before the erroneous character was read, not after. This helps to give better error messages.

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