iated to the
delta) HTTP headers.

IM stands for _instance manipulations_ the term used to describe an algorithm
generating a _delta_ .

##  Status

    
    
    226 IM Used
    

##  Specifications

Specification  
---  
[ Unknown specification  
#  section-10.4.1  ](https://www.rfc-
editor.org/rfc/rfc3229.html#section-10.4.1)  
  
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  *[
                
                 Non-standard
                
               ]: Non-standard. Check cross-browser support before using.
  *[
                
                 Deprecated
                
               ]: Deprecated. Not for use in new websites.
  *[
                
                 Experimental
                
               ]: Experimental. Expect behavior to change in the future.