Hi Paul,

I think the safest play is to use the compiler in your 3.x SDK.  I believe the 
compiler in Apache Flex releases is from the 4.x code base and you might have 
to change some settings to get it to output 3.x code.  There are almost no 
other differences between the compilers, so using the 3.x version is 
effectively 'the latest".

My 2 cents,
-Alex

On 1/30/19, 8:19 AM, "Paul Stearns" <pa...@compuace.com.INVALID> wrote:

    Alex:
    
    Thanks for the response.
    
    Are you suggesting that I might be able to download the latest sdk from 
Apache, and it would recognize and compile correctly my existing v3 Flex (non 
Spark) code?
    
    Paul R. Stearns
    Advanced Consulting Enterprises, Inc.
    
    15280 NW 79th Ct.
    Suite 250
    Miami Lakes, Fl 33016
    
    Voice: (305)623-0360 x107
    Fax: (305)623-4588
    
    ----------------------------------------
    From: Alex Harui <aha...@adobe.com.INVALID>
    Sent: 1/30/19 11:00 AM
    To: "users@flex.apache.org" <users@flex.apache.org>, "pa...@compuace.com" 
<pa...@compuace.com>
    Subject: Re: Best mxmlc compiler to use for existing application.
    Hi Paul,
    
    My memory of these sorts of issues are fading. In looking at the source 
history, there have been almost no changes to the compiler output since Adobe 
donated Flex to Apache. I only saw a couple of fixes for Vector. So, it 
probably doesn't matter which compiler you use.
    
    HTH,
    -Alex
    
    On 1/29/19, 9:47 AM, "Paul Stearns" wrote:
    
    I have a few existing applications developed and maintained using 
FlexBuilder. The current SDK used is 3.5. When I compile for production I use 
mxmlc "Version 3.6.0 build 16995"
    
    Two of my applications have memory leaks. Before spending too much time 
debugging, I want to make sure I am compiling with the best compiler I can 
based on the age and style of code I am using. The applications are pre-Spark
    
    My assumption has been to go beyond V3.x of the compiler would cause 
problems. Is this the case?
    
    So what is the latest compiler I can use (also development environment) 
that will work with the old style code I am supporting?
    
    Paul
    
    
    

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