diff --git a/conanfile.py b/conanfile.py
index 2c16a3d7..6362d47f 100644
--- a/conanfile.py
+++ b/conanfile.py
@@ -9,7 +9,7 @@
 
 class SISLConan(ConanFile):
     name = "sisl"
-    version = "8.8.0"
+    version = "8.8.1"
     homepage = "https://github.com/eBay/sisl"
     description = "Library for fast data structures, utilities"
     topics = ("ebay", "components", "core", "efficiency")
diff --git a/include/sisl/metrics/histogram_buckets.hpp b/include/sisl/metrics/histogram_buckets.hpp
index a725262e..6cee39d7 100644
--- a/include/sisl/metrics/histogram_buckets.hpp
+++ b/include/sisl/metrics/histogram_buckets.hpp
@@ -30,11 +30,18 @@ typedef std::vector< double > hist_bucket_boundaries_t;
     5000, 6500, 8000, 10000, 13000, 16000, 20000, 50000, 80000, 100000, 150000, 180000, 200000, 500000, 2000000,       \
     3000000, 4000000)                                                                                                  \
                                                                                                                        \
+    X(OpLatecyBuckets, 10, 50, 100, 150, 200, 300, 400, 500, 750, 1000, 1500, 2000, 5000, 10000, 20000, 100000,        \
+    200000, 2000000)                                                                                                   \
+                                                                                                                       \
     X(ExponentialOfTwoBuckets, 1, exp2(4), exp2(7), exp2(10), exp2(13), exp2(16), exp2(19), exp2(22), exp2(25),        \
-    exp2(28), exp2(31))                                                                                                 \
+    exp2(28), exp2(31))                                                                                                \
+                                                                                                                       \
+    X(OpSizeBuckets, exp2(12), exp2(13), exp2(16), exp2(20), exp2(22))                                                 \
                                                                                                                        \
     X(LinearUpto64Buckets, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64)                            \
                                                                                                                        \
+    X(SteppedUpto32Buckets, 0, 1, 4, 16, 32)                                                                           \
+                                                                                                                       \
     X(LinearUpto128Buckets, 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 68, 72, 76, 80, 84, 88,   \
     92, 96, 100, 104, 108, 112,  116,  120, 124, 128)                                                                  \
                                                                                                                        \