Deprecated Features
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    Mercurial evolves over time, some features, options, commands may be replaced by
    better and more secure alternatives. This topic will help you migrating your
    existing usage and/or configuration to newer features.
    
    Commands
    ========
    
    The following commands are still available but their use are not recommended:
    
    ``locate``
    
    This command has been replaced by `hg files`.
    
    ``parents``
    
    This command can be replaced by `hg summary` or `hg log` with appropriate
    revsets. See `hg help revsets` for more information.
    
    ``tip``
    
    The recommended alternative is `hg heads`.
    
    Options
    =======
    
    ``web.allowpull``
        Renamed to `allow-pull`.
    
    ``web.allow_push``
        Renamed to `allow-push`.