Is there any difference between Matlab 2019 and 2015?

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Erich Lim 2019-7-8

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https://ww2.mathworks.cn/matlabcentral/answers/470764-is-there-any-difference-between-matlab-2019-and-2015

评论： Mohammad Vahab 2020-4-29

Are there any significant improvents between Matlab 2019 and 2015 versions? Looking for some good reasons to buy/upgrade.

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Rik 2019-7-9

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If I recall correctly you get an Software Maintenance Subscription for a year included in your purchase. If R2020a should then be reasonable to expect, R2020b will probably be longer than a year from now.

Also, 2016b is the first release where you can put functions in a script, which means the syntax checker is more strict for scripts than previous releases. Personally I keep the list below with the most important changes for me personally. But as John said, what is important is dependent on what you do.

MATLAB 6.5	R13
MATLAB 7.0	R14	first release with anon functions
MATLAB 7.1	R14SP3	last release toc(t) could have been introduced (documented since 2008b)
MATLAB 7.2	R2006a	first release with fopen(UTF8)
MATLAB 7.3	R2006b	
MATLAB 7.4	R2007a	
MATLAB 7.5	R2007b	first release with catch ME
MATLAB 7.6	R2008a	
MATLAB 7.7	R2008b	
MATLAB 7.8	R2009a	
MATLAB 7.9	R2009b	first release with ~
MATLAB 7.10	R2010a	
MATLAB 7.11	R2010b	
MATLAB 7.12	R2011a	
MATLAB 7.13	R2011b	
MATLAB 7.14	R2012a	
MATLAB 8.0	R2012b	first release with toolstrip
MATLAB 8.1	R2013a	
MATLAB 8.2	R2013b	first release with table data type
MATLAB 8.3	R2014a	
MATLAB 8.4	R2014b	first release with HG2
MATLAB 8.5	R2015a	last release for XP/Vista
MATLAB 8.6	R2015b	last release for 32 bit
MATLAB 9.0	R2016a	first release with live script and pause during exec
MATLAB 9.1	R2016b	first release of implicit expansion (see bsxfun, 2006b or later), and string data type, first release supporting functions embedded in scripts
MATLAB 9.2	R2017a	
MATLAB 9.3	R2017b	
MATLAB 9.4	R2018a	.mlapp format changed
MATLAB 9.5	R2018b	mouse-over axes toolbar
MATLAB 9.6	R2019a	

Jan 2019-7-9

Well, I'd hesitate to claim, that Matlab has become much faster. See e.g. https://www.mathworks.com/matlabcentral/answers/403786-different-speed-of-execution-of-the-same-code-in-different-versions-matlab-2014b-and-2017a where a script slowed down by a factor of 4 between R2014a to 2018a.

One of the programs I use opens 4 figures with some dozens of diagrams and legends. It took 0.5 seconds for the graphics in R5.3, 0.6 s in 6.5, 0.9 s in 2009a and 3.5 s in 2018b. The actual computations have been accelerated from 4 s to 3 s. Note, that the older Matlab versions run with a single thread in a virtual machine, while the modern versions are multi-threaded and run on a physical computer.

The ancient versions needed only some seconds to startup, while the modern versions feel very tired until the command window is up, even considering the startup-accelerator, which starts some features automatically after the login of the user.

For my work, the computations in Matlab have become significantly slower in the last decade, even considering, that I run it on faster hardware now. But the total workflow is more efficient: Loosing 1 second of processing time is nothing compared to saving hours for debug time by the smart MLint hints. Typos in ~cellfun('isempty', strfind(CellString, keyword)) are more likely than in contains(CellString, keyword).

James Tursa 2019-11-25

Changes to the storage format for complex variables in R2018a will also result in significant speed differences for certain operations. Some will get faster and some will get slower depending on what you are doing compared to earlier versions. E.g., see this link:

https://www.mathworks.com/matlabcentral/answers/436755-r2018b-real-times-complex-multiplication

Mohammad Vahab 2020-4-29

I am running same code on similar workstations, and I can see 100% enhanced performance by using matlab 2019a! The analysis is using 4 cores, through parfor... If you plan to run parallel analysis, I strongly recommend to upgrade to the latest version!

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