SWF version chart

This chart shows which Flash Player version can play specific SWF version. Up to Flash Player 10.0, the Flash Player version and the SWF version were in sync, but fell out of sync starting with Flash Player 10.1.

SWF Version	Flash Player Version	AIR Version
1	1
2	2
3	3
4	4
5	5
6	6
7	7
8	8
9	9.0
10	10.0, 10.1	1.5, 2.0
11	10.2	2.6
12	10.3	2.7
13	11.0	3.0
14	11.1	3.1
15	11.2	3.2
16	11.3	3.3
17	11.4	3.4
18	11.5	3.5
19	11.6	3.6
20	11.7	3.7
21	11.8	3.8
22	11.9	3.9
23	12	4.0
24	13	13
25	14	14
26	15	15
27	16	16
28	17	17
29	18	18
30	19	19
31	20	20
32	21	21
33	22	22
34	23	23
35	24	24
36	25	25
37	26	26
38	27	27
39	28	28
40	29	29
41	30	30
42	31	31
43	32	32

(from https://stackoverflow.com/questions/9537076/chart-of-swf-versions-to-flash-versions)