--- a/TODO	Mon Aug 30 22:21:24 2021 +0200
+++ b/TODO	Thu Nov 25 13:12:32 2021 +0100
@@ -36,7 +36,15 @@
 * Discuss HL7 in a dedicated page:
   https://groups.google.com/d/msg/orthanc-users/4dt4992O0lQ/opTjTFU2BgAJ
   https://groups.google.com/g/orthanc-users/c/Spjtcj9vSPo/m/ktUArWxUDQAJ
-  
+
+
+================
+Orthanc Explorer
+================
+
+* Option to tune the number of results for a local lookup:
+  https://groups.google.com/g/orthanc-users/c/LF39musq02Y/
+
 
 ========
 REST API
@@ -60,6 +68,8 @@
   image. The SOPClassUID might be used to identify such secondary
   captures.
 * Support "/preview" and "/matlab" for LUT color images
+* Try to transcode files if a simple decoding fails:
+  https://groups.google.com/g/orthanc-users/c/b8168-NkAhA/m/Df3j-CO9CgAJ
 * Add asynchronous mode in "/modalitities/.../move" for C-MOVE SCU:
   https://groups.google.com/g/orthanc-users/c/G3_jBy4X4NQ/m/8BanTsdMBQAJ
 * Ranges of DICOM tags for "Keep" and "Remove" in ".../modify" and ".../anonymize": 
@@ -119,11 +129,16 @@
 Performance
 ===========
 
+* StorageAccessor => add a memory cache using MemoryStringCache, for
+  instance to speed up WADO-RS Retrieve Frames in DICOMweb plugin
 * ServerContext::DicomCacheLocker => give access to the raw buffer,
   useful in ServerContext::DecodeDicomInstance()
 * DicomMap: create a cache to the main DICOM tags index
 * Check out rapidjson: https://github.com/miloyip/nativejson-benchmark
-
+* optimize tools/find with ModalitiesInStudies: 
+  https://groups.google.com/g/orthanc-users/c/aN8nqcRd3jw/m/pmc9ylVeAwAJ.
+  One solution could be: filter first without ModalitiesInStudies and then
+  cycle through the responses to filter out with ModalitiesInStudies
 
 ========
 Database