15 lines
923 B
Markdown
15 lines
923 B
Markdown
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# Backwards Compatibility
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We aim to provide backward compatibility (without any guarantee) even for alpha releases, however the library will raise notices indicating breaking changes and what to do about them. \
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If you don't want these notices to appear or change the error message level, you can do so by calling:
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```php
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OpenTelemetry\SDK\Common\Dev\Compatibility\Util::setErrorLevel(0)
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```
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to turn messages off completely, or (for example)
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```php
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OpenTelemetry\SDK\Common\Dev\Compatibility\Util::setErrorLevel(E_USER_DEPRECATED)
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```
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to trigger only deprecation notices. Valid error levels are `0` (none), `E_USER_DEPRECATED`, `E_USER_NOTICE`, `E_USER_WARNING` and `E_USER_ERROR` \
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However (as long as in alpha) it is safer to pin a dependency on the library to a specific version and/or make the adjustments
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mentioned in the provided messages, since doing otherwise may break things completely for you in the future!
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