martinholmer · Sep 28, 2026 · Sep 28, 2026
diff --git a/README.md b/README.md
@@ -8,19 +8,16 @@ For Tax-Calculator results generated when using these TMD input files,
 see [this
 folder](https://github.com/PSLmodels/Tax-Calculator/tree/master/taxcalc/cli/input_data_tests).
 
-The **current TMD version is 2.2.0**, which was released on September
-10, 2026, and is the same as the prior TMD version 2.1.4 except that
-post-2022 weights are extrapolated using a CBO returns projection
-(rather than using a CBO population projection as in prior versions).
-See [PR
-546](https://github.com/PSLmodels/tax-microdata-benchmarking/pull/546)
-for details.
-
-When using version 2.2.0 to generate national or sub-national weights,
-the 2022 weights (and hence, the fingerprints) are the same as for the
-prior version.  However, all the post-2022 weights are larger.  Note
-that the 118th Congressional district weight fingerprints have not
-been updated.
+The **current TMD version is 2.2.1**, which was released on September
+28, 2026, and is the same as the prior TMD version 2.2.0 except for
+minor changes in the generated `tmd.csv.gz` and `tmd_weights.csv.gz`
+files caused by the bug fixes in [Tax-Calculator PR
+3149](https://github.com/PSLmodels/Tax-Calculator/pull/3149).
+See PR #550 for details on the minor changes in TMD test results.
+
+Note that the state fingerprints have been updated, but the
+Congressional district fingerprints have not been updated since
+TMD version 2.2.0 was released.
 
 ## Usage instructions
 

diff --git a/setup.py b/setup.py
@@ -2,11 +2,11 @@
 
 setup(
     name="tmd",
-    version="2.2.0",
+    version="2.2.1",
     packages=find_packages(),
     python_requires=">=3.12,<3.15",
     install_requires=[
-        "taxcalc>=6.8.1",
+        "taxcalc>=6.8.4",
         "numpy",
         "pandas>=3.0.2",
         "clarabel",

diff --git a/tests/expect_tmd_revenues b/tests/expect_tmd_revenues
@@ -2,19 +2,19 @@ TMD vs CBO aggregate individual income tax revenue
 (revenue in billions of calendar-year dollars)
 
 YEAR     ACTUAL     EXPECT  PCTDIFF
-2022     2149.4     2149.6    -0.01
-2023     2241.8     2171.9    +3.22
-2024     2441.3     2408.4    +1.36
-2025     2520.3     2493.7    +1.07
-2026     2685.1     2665.0    +0.75
-2027     2760.4     2776.8    -0.59
-2028     2835.8     2860.0    -0.85
-2029     2991.6     3039.1    -1.56
-2030     3158.0     3196.7    -1.21
-2031     3302.8     3310.2    -0.22
-2032     3451.1     3452.3    -0.03
-2033     3604.9     3599.4    +0.15
-2034     3765.1     3760.4    +0.12
-2035     3932.5     3929.3    +0.08
+2022     2150.1     2149.6    +0.02
+2023     2242.6     2171.9    +3.25
+2024     2442.2     2408.4    +1.40
+2025     2521.3     2493.7    +1.11
+2026     2686.3     2665.0    +0.80
+2027     2761.7     2776.8    -0.54
+2028     2837.2     2860.0    -0.80
+2029     2993.1     3039.1    -1.51
+2030     3159.7     3196.7    -1.16
+2031     3304.7     3310.2    -0.17
+2032     3453.2     3452.3    +0.03
+2033     3607.1     3599.4    +0.21
+2034     3767.5     3760.4    +0.19
+2035     3935.0     3929.3    +0.15
 
-sum over 2022-2035 of squared PCTDIFF: iitax = 19.00
+sum over 2022-2035 of squared PCTDIFF: iitax = 19.11
diff --git a/tests/expected_tax_exp_2022_data b/tests/expected_tax_exp_2022_data
@@ -1,5 +1,5 @@
 YR,KIND,EST= 2023 paytax 1446.3
-YR,KIND,EST= 2023 iitax 2357.2
+YR,KIND,EST= 2023 iitax 2358.0
 YR,KIND,EST= 2023 ctc 130.9
 YR,KIND,EST= 2023 eitc 67.7
 YR,KIND,EST= 2023 social_security_partial_taxability 47.8

diff --git a/tmd/areas/fingerprints/cds_119_fingerprint.json b/tmd/areas/fingerprints/cds_119_fingerprint.json
@@ -3054,10 +3054,10 @@
     }
   },
   "metadata": {
-    "generated": "2026-08-20",
+    "generated": "2026-09-28",
     "n_areas": 436,
     "scope": "cds_119",
-    "taxcalc_version": "6.8.0b",
+    "taxcalc_version": "6.8.3a",
     "taxyear": 2022
   }
 }