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Latest release

This article contains a summary of recent changes, enhancements and bug fixes in Aspose.OMR for .NET 26.1.0 (January 2026) release.

What was changed

Key	Summary	Category
OMRNET‑1191	Improved execution time and memory footprint. For exact numbers see Performance benchmarks 25.8 vs 26.1.	Fix

Public API changes and backwards compatibility

This section lists all public API changes introduced in Aspose.OMR for .NET 26.1 that may affect the code of existing applications.

Added public APIs:

No changes.

Updated public APIs:

No changes.

Removed public APIs:

No changes.

Performance comparison

Benchmark is done with BenchmarkDotNet v.0.15.8 libary.

Aspose OMR for .NET 25.8:

Method	Templates	Mean	Error	StdDev	Gen0	Gen1	Gen2	Allocated
Old_25_OMR_Generate	8	344.5 ms	6.02 ms	5.63 ms	1000.0000	-	-	14.01 MB
Old_25_OMR_Recognize	8	6,585.9 ms	32.75 ms	30.64 ms	172000.0000	51000.0000	15000.0000	1627.93 MB
Old_25_OMR_Generate	16	818.0 ms	11.30 ms	10.02 ms	11000.0000	6000.0000	2000.0000	95.52 MB
Old_25_OMR_Recognize	16	14,123.1 ms	40.85 ms	38.22 ms	472000.0000	86000.0000	27000.0000	4189.6 MB
Old_25_OMR_Generate	32	1,333.7 ms	23.34 ms	21.83 ms	13000.0000	7000.0000	3000.0000	106.08 MB
Old_25_OMR_Recognize	32	37,733.1 ms	86.40 ms	76.59 ms	721000.0000	210000.0000	52000.0000	7326.58 MB
Old_25_OMR_Generate	64	2,350.8 ms	23.62 ms	22.09 ms	18000.0000	9000.0000	4000.0000	135.55 MB
Old_25_OMR_Recognize	64	63,333.6 ms	190.63 ms	148.83 ms	1312000.0000	407000.0000	119000.0000	13189.84 MB
Old_25_OMR_Generate	128	5,088.2 ms	40.23 ms	37.63 ms	32000.0000	16000.0000	3000.0000	239.14 MB
Old_25_OMR_Recognize	128	89,164.0 ms	457.48 ms	427.92 ms	2913000.0000	558000.0000	158000.0000	25520.12 MB

Aspose OMR for .NET 26.1:

Method	Templates	Mean	Error	StdDev	Median	Gen0	Gen1	Gen2	Allocated
New_26_OMR_Generate	8	500.3 ms	8.87 ms	8.30 ms	501.8 ms	1000.0000	-	-	14.03 MB
New_26_OMR_Recognize	8	3,221.8 ms	40.66 ms	36.04 ms	3,214.2 ms	131000.0000	38000.0000	15000.0000	1150.29 MB
New_26_OMR_Generate	16	1,158.2 ms	22.81 ms	47.10 ms	1,136.6 ms	11000.0000	5000.0000	2000.0000	95.54 MB
New_26_OMR_Recognize	16	8,153.1 ms	161.26 ms	226.06 ms	8,155.9 ms	409000.0000	71000.0000	22000.0000	3401.26 MB
New_26_OMR_Generate	32	2,003.5 ms	17.65 ms	14.74 ms	2,004.7 ms	12000.0000	5000.0000	2000.0000	106.11 MB
New_26_OMR_Recognize	32	13,944.8 ms	57.12 ms	50.64 ms	13,953.4 ms	546000.0000	129000.0000	42000.0000	5130.88 MB
New_26_OMR_Generate	64	2,555.1 ms	49.76 ms	59.24 ms	2,534.4 ms	17000.0000	8000.0000	2000.0000	135.57 MB
New_26_OMR_Recognize	64	26,178.4 ms	499.00 ms	533.92 ms	25,988.9 ms	1012000.0000	217000.0000	76000.0000	9551.22 MB
New_26_OMR_Generate	128	5,535.8 ms	63.88 ms	56.63 ms	5,534.9 ms	32000.0000	15000.0000	3000.0000	239.17 MB
New_26_OMR_Recognize	128	36,164.1 ms	694.99 ms	1,082.02 ms	36,064.6 ms	2422000.0000	318000.0000	104000.0000	19927.79 MB

Templates - Number of different template recognition done in a single thread sequence. Mean - Overall execution time in ms (mean average across multiple tests).

Execution Time

Execution time is improved 2-3 times:

Templates	Aspose OMR for .NET 25.8	Aspose OMR for .NET 26.1
8	6,585.9 ms	3,221.8 ms
16	14,123.1 ms	8,153.1 ms
32	37,733.1 ms	13,944.8 ms
64	63,333.6 ms	26,178.4 ms
128	89,164.0 ms	36,164.1 ms

Process RAM usage

By pooling and reusing arrays process memory size improved approximately in half. Also it fixes potential issues with memory leaks in long-running services.

Aspose OMR for .NET 25.8 after recognizing 128 different templates in a row.

OMR-25.8-release

Aspose OMR for .NET 26.1 after recognizing 128 different templates in a row.

OMR-26.1-release

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